दो लगातार धनात्मक पूर्णांकों का गुणनफल (72) है। छोटा पूर्णांक क्या है?
The product of two consecutive positive integers is (72). What is the smaller integer?
#quadratic equations
#word problems
#consecutive integers
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (7)
B (8)
C (9)
D (10)
Explanation opens after your attempt
Step 1
Concept
Let the smaller integer be (x), then (x(x+1)=72) gives (x=8). In exams, write consecutive numbers as (x) and (x+1).
Step 2
Why this answer is correct
The correct answer is B. (8). Let the smaller integer be (x), then (x(x+1)=72) gives (x=8). In exams, write consecutive numbers as (x) and (x+1).
Step 3
Exam Tip
मान लें छोटा पूर्णांक (x) है, तब (x(x+1)=72) से (x=8) मिलता है। परीक्षा में लगातार संख्याओं को (x) और (x+1) लिखें।
Login to save your score, XP, coins and progress. Login
दो लगातार धनात्मक पूर्णांकों का गुणनफल (132) है। बड़ा पूर्णांक क्या है?
The product of two consecutive positive integers is (132). What is the larger integer?
#quadratic equations
#word problems
#consecutive integers
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (10)
B (11)
C (12)
D (13)
Explanation opens after your attempt
Step 1
Concept
Let the numbers be (x) and (x+1), then (x(x+1)=132) gives (x=11). So the larger integer is (12).
Step 2
Why this answer is correct
The correct answer is C. (12). Let the numbers be (x) and (x+1), then (x(x+1)=132) gives (x=11). So the larger integer is (12).
Step 3
Exam Tip
मान लें संख्याएँ (x) और (x+1) हैं, तब (x(x+1)=132) से (x=11) है। इसलिए बड़ा पूर्णांक (12) है।
Login to save your score, XP, coins and progress. Login
एक आयत की लंबाई उसकी चौड़ाई से (3) सेमी अधिक है और क्षेत्रफल (70) वर्ग सेमी है। चौड़ाई क्या है?
A rectangle has length (3) cm more than its breadth and area (70) square cm. What is the breadth?
#quadratic equations
#rectangle
#area
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (5) सेमी / (5) cm
B (7) सेमी / (7) cm
C (10) सेमी / (10) cm
D (14) सेमी / (14) cm
Explanation opens after your attempt
Correct Answer
B. (7) सेमी / (7) cm
Step 1
Concept
Taking breadth as (x), (x(x+3)=70), which gives (x=7). In area questions, do not forget length times breadth.
Step 2
Why this answer is correct
The correct answer is B. (7) सेमी / (7) cm. Taking breadth as (x), (x(x+3)=70), which gives (x=7). In area questions, do not forget length times breadth.
Step 3
Exam Tip
चौड़ाई (x) लेने पर (x(x+3)=70) बनता है, जिससे (x=7) मिलता है। क्षेत्रफल के प्रश्न में लंबाई गुणा चौड़ाई लिखना न भूलें।
Login to save your score, XP, coins and progress. Login
एक आयत की चौड़ाई (6) मीटर है और क्षेत्रफल (96) वर्ग मीटर है। यदि लंबाई (x) मीटर मानी जाए, तो सही समीकरण कौन सा है?
A rectangle has breadth (6) m and area (96) square m. If its length is (x) m, which equation is correct?
#quadratic equations
#application
#rectangle
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (6x=96)
B \(x^2+6=96\)
C (x+6=96)
D \(x^2-6x=96\)
Explanation opens after your attempt
Correct Answer
A. (6x=96)
Step 1
Concept
Area (=) length \(\times\) breadth, so (6x=96) is correct. In every word problem, first identify the formula.
Step 2
Why this answer is correct
The correct answer is A. (6x=96). Area (=) length \(\times\) breadth, so (6x=96) is correct. In every word problem, first identify the formula.
Step 3
Exam Tip
क्षेत्रफल (=) लंबाई \(\times\) चौड़ाई, इसलिए (6x=96) सही है। हर शब्द समस्या में पहले सूत्र पहचानें।
Login to save your score, XP, coins and progress. Login
एक वर्गाकार बगीचे का क्षेत्रफल (169) वर्ग मीटर है। उसकी भुजा क्या है?
A square garden has area (169) square m. What is its side?
#quadratic equations
#square
#area
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (11) मीटर / (11) m
B (12) मीटर / (12) m
C (13) मीटर / (13) m
D (14) मीटर / (14) m
Explanation opens after your attempt
Correct Answer
C. (13) मीटर / (13) m
Step 1
Concept
If the side of the square is (x), then \(x^2=169\), so (x=13). A side length is always taken positive.
Step 2
Why this answer is correct
The correct answer is C. (13) मीटर / (13) m. If the side of the square is (x), then \(x^2=169\), so (x=13). A side length is always taken positive.
Step 3
Exam Tip
वर्ग की भुजा (x) हो तो \(x^2=169\), इसलिए (x=13) है। भुजा हमेशा धनात्मक ली जाती है।
Login to save your score, XP, coins and progress. Login
एक वर्गाकार मैदान का क्षेत्रफल (225) वर्ग मीटर है। उसकी परिमाप क्या है?
A square field has area (225) square m. What is its perimeter?
#quadratic equations
#square
#perimeter
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (30) मीटर / (30) m
B (45) मीटर / (45) m
C (60) मीटर / (60) m
D (75) मीटर / (75) m
Explanation opens after your attempt
Correct Answer
C. (60) मीटर / (60) m
Step 1
Concept
From \(x^2=225\), the side is (15) m and perimeter is (4x=60) m. First find the side, then apply perimeter.
Step 2
Why this answer is correct
The correct answer is C. (60) मीटर / (60) m. From \(x^2=225\), the side is (15) m and perimeter is (4x=60) m. First find the side, then apply perimeter.
Step 3
Exam Tip
\(x^2=225\) से भुजा (15) मीटर है और परिमाप (4x=60) मीटर है। पहले भुजा निकालें, फिर परिमाप लगाएँ।
Login to save your score, XP, coins and progress. Login
एक संख्या और उसके अगले पूर्णांक का गुणनफल (56) है। वह संख्या क्या है?
A number multiplied by its next integer gives (56). What is the number?
#quadratic equations
#integer application
#word problems
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (6)
B (7)
C (8)
D (9)
Explanation opens after your attempt
Step 1
Concept
If the number is (x), then (x(x+1)=56), giving (x=7). In the question, next integer means (x+1).
Step 2
Why this answer is correct
The correct answer is B. (7). If the number is (x), then (x(x+1)=56), giving (x=7). In the question, next integer means (x+1).
Step 3
Exam Tip
संख्या (x) हो तो (x(x+1)=56) बनता है, जिससे (x=7) मिलता है। प्रश्न में अगले पूर्णांक का अर्थ (x+1) है।
Login to save your score, XP, coins and progress. Login
एक धनात्मक संख्या का वर्ग उस संख्या के (5) गुने से (24) अधिक है। संख्या क्या है?
The square of a positive number is (24) more than (5) times the number. What is the number?
#quadratic equations
#number problem
#application
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (6)
B (7)
C (8)
D (9)
Explanation opens after your attempt
Step 1
Concept
The equation is \(x^2=5x+24\), or \(x^2-5x-24=0\), whose positive solution is (x=8). If a positive number is asked, ignore the negative root.
Step 2
Why this answer is correct
The correct answer is C. (8). The equation is \(x^2=5x+24\), or \(x^2-5x-24=0\), whose positive solution is (x=8). If a positive number is asked, ignore the negative root.
Step 3
Exam Tip
समीकरण \(x^2=5x+24\) है, यानी \(x^2-5x-24=0\), जिससे धनात्मक हल (x=8) है। धनात्मक संख्या पूछी हो तो ऋणात्मक हल छोड़ दें।
Login to save your score, XP, coins and progress. Login
एक धनात्मक संख्या का वर्ग उस संख्या के (4) गुने से (45) अधिक है। संख्या क्या है?
The square of a positive number is (45) more than (4) times the number. What is the number?
#quadratic equations
#number problem
#word problems
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (7)
B (8)
C (9)
D (10)
Explanation opens after your attempt
Step 1
Concept
\(x^2=4x+45\) gives \(x^2-4x-45=0\), and the positive solution is (9). In such questions, convert the sentence directly into an equation.
Step 2
Why this answer is correct
The correct answer is C. (9). \(x^2=4x+45\) gives \(x^2-4x-45=0\), and the positive solution is (9). In such questions, convert the sentence directly into an equation.
Step 3
Exam Tip
\(x^2=4x+45\) से \(x^2-4x-45=0\) मिलता है और धनात्मक हल (9) है। ऐसे प्रश्न में वाक्य को सीधे समीकरण में बदलें।
Login to save your score, XP, coins and progress. Login
दो संख्याओं का योग (17) है और गुणनफल (72) है। छोटी संख्या क्या है?
The sum of two numbers is (17) and their product is (72). What is the smaller number?
#quadratic equations
#sum product
#number problem
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (6)
B (8)
C (9)
D (12)
Explanation opens after your attempt
Step 1
Concept
Take the numbers as (x) and (17-x), then (x(17-x)=72) gives (8) and (9). The smaller number is (8).
Step 2
Why this answer is correct
The correct answer is B. (8). Take the numbers as (x) and (17-x), then (x(17-x)=72) gives (8) and (9). The smaller number is (8).
Step 3
Exam Tip
संख्याएँ (x) और (17-x) लें, तब (x(17-x)=72) से संख्याएँ (8) और (9) हैं। छोटी संख्या (8) है।
Login to save your score, XP, coins and progress. Login
दो संख्याओं का योग (19) है और गुणनफल (90) है। बड़ी संख्या क्या है?
The sum of two numbers is (19) and their product is (90). What is the larger number?
#quadratic equations
#sum product
#application
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (9)
B (10)
C (11)
D (12)
Explanation opens after your attempt
Step 1
Concept
Putting the numbers as (x) and (19-x), (x(19-x)=90). The solutions are (9) and (10), so the larger number is (10).
Step 2
Why this answer is correct
The correct answer is B. (10). Putting the numbers as (x) and (19-x), (x(19-x)=90). The solutions are (9) and (10), so the larger number is (10).
Step 3
Exam Tip
संख्याएँ (x) और (19-x) रखने पर (x(19-x)=90) बनता है। हल (9) और (10) हैं, इसलिए बड़ी संख्या (10) है।
Login to save your score, XP, coins and progress. Login
एक आयत की लंबाई चौड़ाई से (5) मीटर अधिक है और क्षेत्रफल (84) वर्ग मीटर है। लंबाई क्या है?
A rectangle has length (5) m more than its breadth and area (84) square m. What is its length?
#quadratic equations
#rectangle
#area
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (7) मीटर / (7) m
B (12) मीटर / (12) m
C (14) मीटर / (14) m
D (16) मीटर / (16) m
Explanation opens after your attempt
Correct Answer
B. (12) मीटर / (12) m
Step 1
Concept
If breadth is (x), then (x(x+5)=84), giving (x=7) and length (12). Check length and breadth separately at the end.
Step 2
Why this answer is correct
The correct answer is B. (12) मीटर / (12) m. If breadth is (x), then (x(x+5)=84), giving (x=7) and length (12). Check length and breadth separately at the end.
Step 3
Exam Tip
चौड़ाई (x) हो तो (x(x+5)=84), जिससे (x=7) और लंबाई (12) है। लंबाई और चौड़ाई को अलग-अलग अंत में जाँचें।
Login to save your score, XP, coins and progress. Login
एक आयत की लंबाई चौड़ाई से (4) सेमी अधिक है और क्षेत्रफल (96) वर्ग सेमी है। चौड़ाई क्या है?
A rectangle has length (4) cm more than its breadth and area (96) square cm. What is the breadth?
#quadratic equations
#rectangle
#area
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (6) सेमी / (6) cm
B (8) सेमी / (8) cm
C (10) सेमी / (10) cm
D (12) सेमी / (12) cm
Explanation opens after your attempt
Correct Answer
B. (8) सेमी / (8) cm
Step 1
Concept
Taking breadth as (x), (x(x+4)=96), giving (x=8). In area questions, always note the unit.
Step 2
Why this answer is correct
The correct answer is B. (8) सेमी / (8) cm. Taking breadth as (x), (x(x+4)=96), giving (x=8). In area questions, always note the unit.
Step 3
Exam Tip
चौड़ाई (x) लेने पर (x(x+4)=96) है, जिससे (x=8) मिलता है। क्षेत्रफल वाले प्रश्नों में इकाई जरूर ध्यान रखें।
Login to save your score, XP, coins and progress. Login
एक आयत की लंबाई चौड़ाई से (2) मीटर अधिक है और क्षेत्रफल (120) वर्ग मीटर है। चौड़ाई क्या है?
A rectangle has length (2) m more than its breadth and area (120) square m. What is the breadth?
#quadratic equations
#rectangle
#dimension
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (8) मीटर / (8) m
B (10) मीटर / (10) m
C (12) मीटर / (12) m
D (14) मीटर / (14) m
Explanation opens after your attempt
Correct Answer
B. (10) मीटर / (10) m
Step 1
Concept
If breadth is (x), then (x(x+2)=120), giving (x=10). Only the positive value is valid for a dimension.
Step 2
Why this answer is correct
The correct answer is B. (10) मीटर / (10) m. If breadth is (x), then (x(x+2)=120), giving (x=10). Only the positive value is valid for a dimension.
Step 3
Exam Tip
चौड़ाई (x) हो तो (x(x+2)=120), जिससे (x=10) है। केवल धनात्मक मान ही आयाम के लिए मान्य होता है।
Login to save your score, XP, coins and progress. Login
एक आयत का क्षेत्रफल (150) वर्ग सेमी है। उसकी लंबाई चौड़ाई से (5) सेमी अधिक है। लंबाई क्या है?
A rectangle has area (150) square cm. Its length is (5) cm more than its breadth. What is its length?
#quadratic equations
#rectangle
#area
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (10) सेमी / (10) cm
B (12) सेमी / (12) cm
C (15) सेमी / (15) cm
D (20) सेमी / (20) cm
Explanation opens after your attempt
Correct Answer
C. (15) सेमी / (15) cm
Step 1
Concept
(x(x+5)=150) gives breadth (10) and length (15). Give the answer according to the dimension asked.
Step 2
Why this answer is correct
The correct answer is C. (15) सेमी / (15) cm. (x(x+5)=150) gives breadth (10) and length (15). Give the answer according to the dimension asked.
Step 3
Exam Tip
(x(x+5)=150) से चौड़ाई (10) और लंबाई (15) मिलती है। उत्तर पूछे गए आयाम के अनुसार दें।
Login to save your score, XP, coins and progress. Login
एक समकोण त्रिभुज में छोटी भुजा (x) सेमी और दूसरी लम्ब भुजा (x+7) सेमी है। कर्ण (13) सेमी है। (x) क्या है?
In a right triangle, the smaller leg is (x) cm and the other leg is (x+7) cm. The hypotenuse is (13) cm. What is (x)?
#quadratic equations
#pythagoras
#application
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (3)
B (4)
C (5)
D (6)
Explanation opens after your attempt
Step 1
Concept
By Pythagoras, (x-2 +(x+7)2 =132 ), giving (x=5). In a right triangle, always take the hypotenuse as the largest side.
Step 2
Why this answer is correct
The correct answer is C. (5). By Pythagoras, (x-2 +(x+7)2 =132 ), giving (x=5). In a right triangle, always take the hypotenuse as the largest side.
Step 3
Exam Tip
पाइथागोरस से (x-2 +(x+7)2 =132 ), जिससे (x=5) है। समकोण त्रिभुज में हमेशा कर्ण को सबसे बड़ी भुजा लें।
Login to save your score, XP, coins and progress. Login
एक समकोण त्रिभुज में लम्ब भुजाएँ (x) सेमी और (x+1) सेमी हैं तथा कर्ण (5) सेमी है। छोटी भुजा क्या है?
A right triangle has legs (x) cm and (x+1) cm and hypotenuse (5) cm. What is the smaller leg?
#quadratic equations
#pythagoras
#right triangle
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (2) सेमी / (2) cm
B (3) सेमी / (3) cm
C (4) सेमी / (4) cm
D (5) सेमी / (5) cm
Explanation opens after your attempt
Correct Answer
B. (3) सेमी / (3) cm
Step 1
Concept
(x-2 +(x+1)2 =52 ) gives (x=3). After solving, check the (3,4,5) triplet.
Step 2
Why this answer is correct
The correct answer is B. (3) सेमी / (3) cm. (x-2 +(x+1)2 =52 ) gives (x=3). After solving, check the (3,4,5) triplet.
Step 3
Exam Tip
(x-2 +(x+1)2 =52 ) से (x=3) मिलता है। हल के बाद (3,4,5) त्रिक की जाँच करें।
Login to save your score, XP, coins and progress. Login
एक समकोण त्रिभुज की लम्ब भुजाएँ (x) सेमी और (x+2) सेमी हैं तथा कर्ण (10) सेमी है। (x) का धनात्मक मान क्या है?
The legs of a right triangle are (x) cm and (x+2) cm, and the hypotenuse is (10) cm. What is the positive value of (x)?
#quadratic equations
#pythagoras
#word problem
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (4)
B (5)
C (6)
D (8)
Explanation opens after your attempt
Step 1
Concept
(x-2 +(x+2)2 =102 ) gives the positive solution (x=6). A negative root is not used for length.
Step 2
Why this answer is correct
The correct answer is C. (6). (x-2 +(x+2)2 =102 ) gives the positive solution (x=6). A negative root is not used for length.
Step 3
Exam Tip
(x-2 +(x+2)2 =102 ) से धनात्मक हल (x=6) है। लंबाई के लिए ऋणात्मक हल नहीं लिया जाता।
Login to save your score, XP, coins and progress. Login
किसी संख्या में (3) जोड़ने पर प्राप्त संख्या का वर्ग (100) है। धनात्मक मूल के अनुसार संख्या क्या है?
When (3) is added to a number, the square of the result is (100). According to the positive root, what is the number?
#quadratic equations
#number problem
#square
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (5)
B (6)
C (7)
D (8)
Explanation opens after your attempt
Step 1
Concept
((x+3)2 =100) gives (x+3=10), so (x=7). If the question says positive root, take (10).
Step 2
Why this answer is correct
The correct answer is C. (7). ((x+3)2 =100) gives (x+3=10), so (x=7). If the question says positive root, take (10).
Step 3
Exam Tip
((x+3)2 =100) से (x+3=10), इसलिए (x=7) है। प्रश्न में धनात्मक मूल कहा हो तो (10) लें।
Login to save your score, XP, coins and progress. Login
किसी संख्या में (4) घटाने पर प्राप्त संख्या का वर्ग (81) है। धनात्मक स्थिति में मूल संख्या क्या है?
When (4) is subtracted from a number, the square of the result is (81). In the positive case, what is the original number?
#quadratic equations
#number problem
#application
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (9)
B (12)
C (13)
D (15)
Explanation opens after your attempt
Step 1
Concept
((x-4)2 =81) and (x-4=9), so (x=13). A square may give two roots, so read the condition.
Step 2
Why this answer is correct
The correct answer is C. (13). ((x-4)2 =81) and (x-4=9), so (x=13). A square may give two roots, so read the condition.
Step 3
Exam Tip
((x-4)2 =81) और (x-4=9), इसलिए (x=13) है। वर्ग से दो मूल आ सकते हैं, इसलिए शर्त पढ़ें।
Login to save your score, XP, coins and progress. Login
एक संख्या के वर्ग और संख्या के (6) गुने का अंतर (16) है। धनात्मक संख्या क्या है?
The difference between the square of a number and (6) times the number is (16). What is the positive number?
#quadratic equations
#number problem
#difference
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (4)
B (6)
C (8)
D (10)
Explanation opens after your attempt
Step 1
Concept
The equation is \(x^2-6x=16\), or \(x^2-6x-16=0\), giving (x=8). In difference questions, read the order carefully.
Step 2
Why this answer is correct
The correct answer is C. (8). The equation is \(x^2-6x=16\), or \(x^2-6x-16=0\), giving (x=8). In difference questions, read the order carefully.
Step 3
Exam Tip
समीकरण \(x^2-6x=16\) है, यानी \(x^2-6x-16=0\), जिससे (x=8) है। अंतर वाले प्रश्न में क्रम ध्यान से पढ़ें।
Login to save your score, XP, coins and progress. Login
एक संख्या का वर्ग संख्या के (7) गुने से (18) अधिक है। धनात्मक संख्या क्या है?
The square of a number is (18) more than (7) times the number. What is the positive number?
#quadratic equations
#number problem
#application
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (8)
B (9)
C (10)
D (11)
Explanation opens after your attempt
Step 1
Concept
\(x^2=7x+18\) gives \(x^2-7x-18=0\), and the positive solution is (9). The phrase more than means addition.
Step 2
Why this answer is correct
The correct answer is B. (9). \(x^2=7x+18\) gives \(x^2-7x-18=0\), and the positive solution is (9). The phrase more than means addition.
Step 3
Exam Tip
\(x^2=7x+18\) से \(x^2-7x-18=0\) और धनात्मक हल (9) है। वाक्य में अधिक का अर्थ जोड़ना होता है।
Login to save your score, XP, coins and progress. Login
एक संख्या और उसके वर्ग का योग (42) है। धनात्मक संख्या क्या है?
The sum of a number and its square is (42). What is the positive number?
#quadratic equations
#number and square
#word problem
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (5)
B (6)
C (7)
D (8)
Explanation opens after your attempt
Step 1
Concept
\(x^2+x=42\) gives \(x^2+x-42=0\), so (x=6). Convert the sum of number and square directly into an equation.
Step 2
Why this answer is correct
The correct answer is B. (6). \(x^2+x=42\) gives \(x^2+x-42=0\), so (x=6). Convert the sum of number and square directly into an equation.
Step 3
Exam Tip
\(x^2+x=42\) से \(x^2+x-42=0\), इसलिए (x=6) है। संख्या और वर्ग के योग को सीधे समीकरण में बदलें।
Login to save your score, XP, coins and progress. Login
एक संख्या और उसके वर्ग का योग (110) है। धनात्मक संख्या क्या है?
The sum of a number and its square is (110). What is the positive number?
#quadratic equations
#number problem
#factoring
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (8)
B (9)
C (10)
D (11)
Explanation opens after your attempt
Step 1
Concept
\(x^2+x=110\) gives \(x^2+x-110=0\), whose positive solution is (10). While factoring, check factors of (110).
Step 2
Why this answer is correct
The correct answer is C. (10). \(x^2+x=110\) gives \(x^2+x-110=0\), whose positive solution is (10). While factoring, check factors of (110).
Step 3
Exam Tip
\(x^2+x=110\) से \(x^2+x-110=0\), जिसका धनात्मक हल (10) है। गुणनखंड बनाते समय (110) के गुणनखंड देखें।
Login to save your score, XP, coins and progress. Login
दो लगातार विषम धनात्मक संख्याओं का गुणनफल (143) है। छोटी संख्या क्या है?
The product of two consecutive odd positive numbers is (143). What is the smaller number?
#quadratic equations
#odd integers
#word problems
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (9)
B (11)
C (13)
D (15)
Explanation opens after your attempt
Step 1
Concept
Consecutive odd numbers are (x) and (x+2), so (x(x+2)=143) gives (x=11). Consecutive odd numbers differ by (2).
Step 2
Why this answer is correct
The correct answer is B. (11). Consecutive odd numbers are (x) and (x+2), so (x(x+2)=143) gives (x=11). Consecutive odd numbers differ by (2).
Step 3
Exam Tip
लगातार विषम संख्याएँ (x) और (x+2) होंगी, इसलिए (x(x+2)=143) से (x=11) मिलता है। विषम लगातार संख्याओं में अंतर (2) होता है।
Login to save your score, XP, coins and progress. Login
दो लगातार सम धनात्मक संख्याओं का गुणनफल (168) है। बड़ी संख्या क्या है?
The product of two consecutive even positive numbers is (168). What is the larger number?
#quadratic equations
#even integers
#application
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (10)
B (12)
C (14)
D (16)
Explanation opens after your attempt
Step 1
Concept
Take consecutive even numbers as (x) and (x+2), then (x(x+2)=168) gives (x=12). Hence the larger number is (14).
Step 2
Why this answer is correct
The correct answer is C. (14). Take consecutive even numbers as (x) and (x+2), then (x(x+2)=168) gives (x=12). Hence the larger number is (14).
Step 3
Exam Tip
लगातार सम संख्याएँ (x) और (x+2) लें, तब (x(x+2)=168) से (x=12) है। इसलिए बड़ी संख्या (14) है।
Login to save your score, XP, coins and progress. Login
दो लगातार विषम संख्याओं का गुणनफल (195) है। बड़ी संख्या क्या है?
The product of two consecutive odd numbers is (195). What is the larger number?
#quadratic equations
#odd integers
#application
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (13)
B (15)
C (17)
D (19)
Explanation opens after your attempt
Step 1
Concept
(x(x+2)=195) gives (x=13), so the larger number is (15). For odd numbers, (x) and (x+2) is the correct form.
Step 2
Why this answer is correct
The correct answer is B. (15). (x(x+2)=195) gives (x=13), so the larger number is (15). For odd numbers, (x) and (x+2) is the correct form.
Step 3
Exam Tip
(x(x+2)=195) से (x=13), इसलिए बड़ी संख्या (15) है। विषम संख्याओं के लिए (x) और (x+2) सही रूप है।
Login to save your score, XP, coins and progress. Login
दो लगातार सम संख्याओं का गुणनफल (224) है। छोटी संख्या क्या है?
The product of two consecutive even numbers is (224). What is the smaller number?
#quadratic equations
#even integers
#word problem
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (12)
B (14)
C (16)
D (18)
Explanation opens after your attempt
Step 1
Concept
(x(x+2)=224) gives (x=14). Keep a difference of (2) for consecutive even numbers.
Step 2
Why this answer is correct
The correct answer is B. (14). (x(x+2)=224) gives (x=14). Keep a difference of (2) for consecutive even numbers.
Step 3
Exam Tip
(x(x+2)=224) से (x=14) मिलता है। सम लगातार संख्याओं में (2) का अंतर रखें।
Login to save your score, XP, coins and progress. Login
एक आयताकार कक्षा की लंबाई चौड़ाई से (8) मीटर अधिक है और क्षेत्रफल (240) वर्ग मीटर है। चौड़ाई क्या है?
A rectangular classroom has length (8) m more than its breadth and area (240) square m. What is its breadth?
#quadratic equations
#rectangle
#classroom
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (10) मीटर / (10) m
B (12) मीटर / (12) m
C (15) मीटर / (15) m
D (20) मीटर / (20) m
Explanation opens after your attempt
Correct Answer
B. (12) मीटर / (12) m
Step 1
Concept
If breadth is (x), then (x(x+8)=240), giving (x=12). Check dimensions by \(12 \times 20=240\).
Step 2
Why this answer is correct
The correct answer is B. (12) मीटर / (12) m. If breadth is (x), then (x(x+8)=240), giving (x=12). Check dimensions by \(12 \times 20=240\).
Step 3
Exam Tip
चौड़ाई (x) हो तो (x(x+8)=240), जिससे (x=12) है। आयामों की जाँच \(12 \times 20=240\) से करें।
Login to save your score, XP, coins and progress. Login
एक आयताकार पोस्टर की लंबाई चौड़ाई से (10) सेमी अधिक है और क्षेत्रफल (375) वर्ग सेमी है। चौड़ाई क्या है?
A rectangular poster has length (10) cm more than its breadth and area (375) square cm. What is its breadth?
#quadratic equations
#rectangle
#poster
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (10) सेमी / (10) cm
B (15) सेमी / (15) cm
C (20) सेमी / (20) cm
D (25) सेमी / (25) cm
Explanation opens after your attempt
Correct Answer
B. (15) सेमी / (15) cm
Step 1
Concept
(x(x+10)=375) gives (x=15). Finally checking \(15 \times 25=375\) is a good method.
Step 2
Why this answer is correct
The correct answer is B. (15) सेमी / (15) cm. (x(x+10)=375) gives (x=15). Finally checking \(15 \times 25=375\) is a good method.
Step 3
Exam Tip
(x(x+10)=375) से (x=15) है। अंत में \(15 \times 25=375\) जाँच लेना अच्छा तरीका है।
Login to save your score, XP, coins and progress. Login
एक आयताकार खेत की लंबाई चौड़ाई से (9) मीटर अधिक है और क्षेत्रफल (400) वर्ग मीटर है। चौड़ाई क्या है?
A rectangular field has length (9) m more than its breadth and area (400) square m. What is its breadth?
#quadratic equations
#rectangle
#field
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (16) मीटर / (16) m
B (20) मीटर / (20) m
C (25) मीटर / (25) m
D (30) मीटर / (30) m
Explanation opens after your attempt
Correct Answer
A. (16) मीटर / (16) m
Step 1
Concept
Taking breadth as (x), (x(x+9)=400), giving (x=16). Do not accept the wrong negative value as a dimension.
Step 2
Why this answer is correct
The correct answer is A. (16) मीटर / (16) m. Taking breadth as (x), (x(x+9)=400), giving (x=16). Do not accept the wrong negative value as a dimension.
Step 3
Exam Tip
चौड़ाई (x) लेने पर (x(x+9)=400), जिससे (x=16) मिलता है। गलत ऋणात्मक मान को आयाम में स्वीकार न करें।
Login to save your score, XP, coins and progress. Login
एक संख्या को उसके (2) अधिक मान से गुणा करने पर (63) मिलता है। संख्या क्या है?
A number multiplied by (2) more than itself gives (63). What is the number?
#quadratic equations
#number problem
#application
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (5)
B (6)
C (7)
D (9)
Explanation opens after your attempt
Step 1
Concept
The equation is (x(x+2)=63), which gives (x=7). (2) more than the number means (x+2).
Step 2
Why this answer is correct
The correct answer is C. (7). The equation is (x(x+2)=63), which gives (x=7). (2) more than the number means (x+2).
Step 3
Exam Tip
समीकरण (x(x+2)=63) है, जिससे (x=7) मिलता है। (2) अधिक का अर्थ (x+2) होता है।
Login to save your score, XP, coins and progress. Login
एक संख्या को उसके (4) अधिक मान से गुणा करने पर (165) मिलता है। संख्या क्या है?
A number multiplied by (4) more than itself gives (165). What is the number?
#quadratic equations
#number application
#word problem
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (9)
B (11)
C (13)
D (15)
Explanation opens after your attempt
Step 1
Concept
(x(x+4)=165) gives (x=11). In product questions, place brackets correctly.
Step 2
Why this answer is correct
The correct answer is B. (11). (x(x+4)=165) gives (x=11). In product questions, place brackets correctly.
Step 3
Exam Tip
(x(x+4)=165) से (x=11) है। गुणनफल वाले प्रश्नों में कोष्ठक सही लगाएँ।
Login to save your score, XP, coins and progress. Login
एक संख्या को उसके (6) कम मान से गुणा करने पर (112) मिलता है। बड़ी संख्या क्या है?
A number multiplied by (6) less than itself gives (112). What is the larger number?
#quadratic equations
#number problem
#product
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (12)
B (14)
C (16)
D (18)
Explanation opens after your attempt
Step 1
Concept
If the larger number is (x), then (x(x-6)=112), giving (x=14). Use (x-6) for less than the number.
Step 2
Why this answer is correct
The correct answer is B. (14). If the larger number is (x), then (x(x-6)=112), giving (x=14). Use (x-6) for less than the number.
Step 3
Exam Tip
बड़ी संख्या (x) हो तो (x(x-6)=112), जिससे (x=14) है। कम मान लिखते समय (x-6) का प्रयोग करें।
Login to save your score, XP, coins and progress. Login
दो संख्याओं का अंतर (5) है और गुणनफल (84) है। बड़ी संख्या क्या है?
The difference between two numbers is (5) and their product is (84). What is the larger number?
#quadratic equations
#difference product
#word problem
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (7)
B (9)
C (12)
D (14)
Explanation opens after your attempt
Step 1
Concept
Let the smaller number be (x) and the larger be (x+5), then (x(x+5)=84) gives (7) and (12). The larger number is (12).
Step 2
Why this answer is correct
The correct answer is C. (12). Let the smaller number be (x) and the larger be (x+5), then (x(x+5)=84) gives (7) and (12). The larger number is (12).
Step 3
Exam Tip
छोटी संख्या (x) और बड़ी (x+5) हो, तब (x(x+5)=84) से संख्याएँ (7) और (12) हैं। बड़ी संख्या (12) है।
Login to save your score, XP, coins and progress. Login
दो संख्याओं का अंतर (3) है और गुणनफल (108) है। छोटी संख्या क्या है?
The difference between two numbers is (3) and their product is (108). What is the smaller number?
#quadratic equations
#difference product
#application
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (9)
B (10)
C (12)
D (15)
Explanation opens after your attempt
Step 1
Concept
Putting the smaller number as (x) and larger as (x+3), (x(x+3)=108), giving (x=9). Write the difference in the correct direction.
Step 2
Why this answer is correct
The correct answer is A. (9). Putting the smaller number as (x) and larger as (x+3), (x(x+3)=108), giving (x=9). Write the difference in the correct direction.
Step 3
Exam Tip
छोटी संख्या (x) और बड़ी (x+3) रखने पर (x(x+3)=108) है, जिससे (x=9) है। अंतर को सही दिशा में लिखें।
Login to save your score, XP, coins and progress. Login
एक आयताकार टेबल की लंबाई चौड़ाई से (1) मीटर अधिक है और क्षेत्रफल (30) वर्ग मीटर है। चौड़ाई क्या है?
A rectangular table has length (1) m more than its breadth and area (30) square m. What is the breadth?
#quadratic equations
#rectangle
#table
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (4) मीटर / (4) m
B (5) मीटर / (5) m
C (6) मीटर / (6) m
D (7) मीटर / (7) m
Explanation opens after your attempt
Correct Answer
B. (5) मीटर / (5) m
Step 1
Concept
Taking breadth as (x), (x(x+1)=30), so (x=5). Even with small numbers, forming the equation is important.
Step 2
Why this answer is correct
The correct answer is B. (5) मीटर / (5) m. Taking breadth as (x), (x(x+1)=30), so (x=5). Even with small numbers, forming the equation is important.
Step 3
Exam Tip
चौड़ाई (x) लेने पर (x(x+1)=30), इसलिए (x=5) है। छोटे अंकों में भी समीकरण बनाना जरूरी है।
Login to save your score, XP, coins and progress. Login
एक आयताकार फर्श की लंबाई चौड़ाई से (7) मीटर अधिक है और क्षेत्रफल (260) वर्ग मीटर है। चौड़ाई क्या है?
A rectangular floor has length (7) m more than its breadth and area (260) square m. What is the breadth?
#quadratic equations
#rectangle
#floor
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (10) मीटर / (10) m
B (13) मीटर / (13) m
C (15) मीटर / (15) m
D (20) मीटर / (20) m
Explanation opens after your attempt
Correct Answer
B. (13) मीटर / (13) m
Step 1
Concept
(x(x+7)=260) gives (x=13). For area, take the product of both dimensions.
Step 2
Why this answer is correct
The correct answer is B. (13) मीटर / (13) m. (x(x+7)=260) gives (x=13). For area, take the product of both dimensions.
Step 3
Exam Tip
(x(x+7)=260) से (x=13) मिलता है। क्षेत्रफल के लिए दोनों आयामों का गुणनफल लें।
Login to save your score, XP, coins and progress. Login
एक वर्गाकार टाइल का क्षेत्रफल (64) वर्ग सेमी है। उसकी भुजा क्या है?
A square tile has area (64) square cm. What is its side?
#quadratic equations
#square
#tile
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (6) सेमी / (6) cm
B (7) सेमी / (7) cm
C (8) सेमी / (8) cm
D (9) सेमी / (9) cm
Explanation opens after your attempt
Correct Answer
C. (8) सेमी / (8) cm
Step 1
Concept
If the side is (x), then \(x^2=64\), so (x=8). In a square, area equals the square of the side.
Step 2
Why this answer is correct
The correct answer is C. (8) सेमी / (8) cm. If the side is (x), then \(x^2=64\), so (x=8). In a square, area equals the square of the side.
Step 3
Exam Tip
भुजा (x) हो तो \(x^2=64\), इसलिए (x=8) है। वर्ग में क्षेत्रफल भुजा के वर्ग के बराबर होता है।
Login to save your score, XP, coins and progress. Login
एक वर्गाकार शीट का क्षेत्रफल (144) वर्ग सेमी है। उसकी परिमाप क्या है?
A square sheet has area (144) square cm. What is its perimeter?
#quadratic equations
#square
#perimeter
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (36) सेमी / (36) cm
B (40) सेमी / (40) cm
C (44) सेमी / (44) cm
D (48) सेमी / (48) cm
Explanation opens after your attempt
Correct Answer
D. (48) सेमी / (48) cm
Step 1
Concept
\(x^2=144\) gives side (12) cm and perimeter (4x=48) cm. If perimeter is asked, do not stop after finding the side.
Step 2
Why this answer is correct
The correct answer is D. (48) सेमी / (48) cm. \(x^2=144\) gives side (12) cm and perimeter (4x=48) cm. If perimeter is asked, do not stop after finding the side.
Step 3
Exam Tip
\(x^2=144\) से भुजा (12) सेमी है और परिमाप (4x=48) सेमी है। परिमाप पूछे जाने पर केवल भुजा लिखकर न रुकें।
Login to save your score, XP, coins and progress. Login
दो संख्याओं का योग (21) है और गुणनफल (110) है। छोटी संख्या क्या है?
The sum of two numbers is (21) and their product is (110). What is the smaller number?
#quadratic equations
#sum product
#application
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (9)
B (10)
C (11)
D (12)
Explanation opens after your attempt
Step 1
Concept
If the numbers are (x) and (21-x), then (x(21-x)=110) gives (10) and (11). The smaller number is (10).
Step 2
Why this answer is correct
The correct answer is B. (10). If the numbers are (x) and (21-x), then (x(21-x)=110) gives (10) and (11). The smaller number is (10).
Step 3
Exam Tip
संख्याएँ (x) और (21-x) हों, तब (x(21-x)=110) से (10) और (11) मिलते हैं। छोटी संख्या (10) है।
Login to save your score, XP, coins and progress. Login
दो संख्याओं का योग (25) है और गुणनफल (156) है। बड़ी संख्या क्या है?
The sum of two numbers is (25) and their product is (156). What is the larger number?
#quadratic equations
#sum product
#number problem
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (12)
B (13)
C (14)
D (15)
Explanation opens after your attempt
Step 1
Concept
(x(25-x)=156) gives the numbers (12) and (13). Therefore, the larger number is (13).
Step 2
Why this answer is correct
The correct answer is B. (13). (x(25-x)=156) gives the numbers (12) and (13). Therefore, the larger number is (13).
Step 3
Exam Tip
(x(25-x)=156) से संख्याएँ (12) और (13) हैं। इसलिए बड़ी संख्या (13) है।
Login to save your score, XP, coins and progress. Login
एक धनात्मक संख्या और उसके (3) अधिक मान का गुणनफल (180) है। छोटी संख्या क्या है?
A positive number and (3) more than it have product (180). What is the smaller number?
#quadratic equations
#number product
#application
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (10)
B (12)
C (15)
D (18)
Explanation opens after your attempt
Step 1
Concept
(x(x+3)=180) gives (x=12). The number (3) more than it will be (15).
Step 2
Why this answer is correct
The correct answer is B. (12). (x(x+3)=180) gives (x=12). The number (3) more than it will be (15).
Step 3
Exam Tip
(x(x+3)=180) से (x=12) मिलता है। (3) अधिक वाला मान (15) होगा।
Login to save your score, XP, coins and progress. Login
एक धनात्मक संख्या और उसके (5) अधिक मान का गुणनफल (204) है। बड़ी संख्या क्या है?
A positive number and (5) more than it have product (204). What is the larger number?
#quadratic equations
#number product
#word problem
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (12)
B (15)
C (17)
D (20)
Explanation opens after your attempt
Step 1
Concept
(x(x+5)=204) gives (x=12), so the larger number is (17). While answering, write only the value asked.
Step 2
Why this answer is correct
The correct answer is C. (17). (x(x+5)=204) gives (x=12), so the larger number is (17). While answering, write only the value asked.
Step 3
Exam Tip
(x(x+5)=204) से (x=12) है, इसलिए बड़ी संख्या (17) है। उत्तर देते समय पूछा गया मान ही लिखें।
Login to save your score, XP, coins and progress. Login
एक छात्र ने (x) प्रश्न हल किए। प्रत्येक सही प्रश्न के लिए (x) अंक मिले और कुल (121) अंक बने। (x) क्या है?
A student solved (x) questions. For each correct question, (x) marks were given and the total became (121) marks. What is (x)?
#quadratic equations
#marks application
#square
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (9)
B (10)
C (11)
D (12)
Explanation opens after your attempt
Step 1
Concept
Total marks are \(x \times x=x^2\), so \(x^2=121\) and (x=11). In context, the number of questions is positive.
Step 2
Why this answer is correct
The correct answer is C. (11). Total marks are \(x \times x=x^2\), so \(x^2=121\) and (x=11). In context, the number of questions is positive.
Step 3
Exam Tip
कुल अंक \(x \times x=x^2\) हैं, इसलिए \(x^2=121\) और (x=11)। संदर्भ में प्रश्नों की संख्या धनात्मक होती है।
Login to save your score, XP, coins and progress. Login
एक पुस्तकालय में (x) अलमारियाँ हैं और प्रत्येक में (x+2) पुस्तकें हैं। कुल पुस्तकें (120) हैं। अलमारियों की संख्या क्या है?
A library has (x) shelves and each shelf has (x+2) books. The total number of books is (120). What is the number of shelves?
#quadratic equations
#library application
#word problem
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (8)
B (10)
C (12)
D (15)
Explanation opens after your attempt
Step 1
Concept
The equation is (x(x+2)=120), giving (x=10). For total quantity, multiply number of groups by number in each group.
Step 2
Why this answer is correct
The correct answer is B. (10). The equation is (x(x+2)=120), giving (x=10). For total quantity, multiply number of groups by number in each group.
Step 3
Exam Tip
समीकरण (x(x+2)=120) है, जिससे (x=10) मिलता है। कुल मात्रा में समूहों की संख्या और प्रति समूह संख्या गुणा करें।
Login to save your score, XP, coins and progress. Login
एक पंक्ति व्यवस्था में (x) पंक्तियाँ हैं और हर पंक्ति में (x+4) विद्यार्थी हैं। कुल विद्यार्थी (96) हैं। पंक्तियाँ कितनी हैं?
In a row arrangement, there are (x) rows and (x+4) students in each row. There are (96) students in total. How many rows are there?
#quadratic equations
#arrangement
#students
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (6)
B (8)
C (10)
D (12)
Explanation opens after your attempt
Step 1
Concept
(x(x+4)=96) gives (x=8). In arrangement questions, total (=) rows \(\times\) students per row.
Step 2
Why this answer is correct
The correct answer is B. (8). (x(x+4)=96) gives (x=8). In arrangement questions, total (=) rows \(\times\) students per row.
Step 3
Exam Tip
(x(x+4)=96) से (x=8) है। व्यवस्था के प्रश्नों में कुल (=) पंक्तियाँ \(\times\) प्रति पंक्ति विद्यार्थी होता है।
Login to save your score, XP, coins and progress. Login
एक कक्षा में (x) बेंच हैं और हर बेंच पर (x-1) विद्यार्थी बैठते हैं। कुल (72) विद्यार्थी हैं। बेंच की संख्या क्या है?
A class has (x) benches and (x-1) students sit on each bench. There are (72) students in total. What is the number of benches?
#quadratic equations
#arrangement
#classroom
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (8)
B (9)
C (10)
D (12)
Explanation opens after your attempt
Step 1
Concept
(x(x-1)=72) gives (x=9). The number of benches cannot be zero or negative.
Step 2
Why this answer is correct
The correct answer is B. (9). (x(x-1)=72) gives (x=9). The number of benches cannot be zero or negative.
Step 3
Exam Tip
(x(x-1)=72) से (x=9) मिलता है। बेंचों की संख्या शून्य या ऋणात्मक नहीं हो सकती।
Login to save your score, XP, coins and progress. Login
एक बगीचे में (x) कतारें हैं और हर कतार में (x+5) पौधे हैं। कुल (176) पौधे हैं। कतारें कितनी हैं?
A garden has (x) rows and each row has (x+5) plants. There are (176) plants in total. How many rows are there?
#quadratic equations
#garden arrangement
#application
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (8)
B (11)
C (13)
D (16)
Explanation opens after your attempt
Step 1
Concept
(x(x+5)=176) gives (x=11). For total plants, multiply rows and plants per row.
Step 2
Why this answer is correct
The correct answer is B. (11). (x(x+5)=176) gives (x=11). For total plants, multiply rows and plants per row.
Step 3
Exam Tip
(x(x+5)=176) से (x=11) है। पौधों की कुल संख्या के लिए कतारों और प्रति कतार पौधों को गुणा करें।
Login to save your score, XP, coins and progress. Login
एक सभा में (x) पंक्तियाँ हैं और प्रत्येक पंक्ति में (x+3) कुर्सियाँ हैं। कुल (154) कुर्सियाँ हैं। पंक्तियों की संख्या क्या है?
In an assembly, there are (x) rows and (x+3) chairs in each row. There are (154) chairs in total. What is the number of rows?
#quadratic equations
#arrangement
#chairs
50 50-50 2 wrong hide
⏭ Skip Next question
+10 Time+ 10 sec extra
? Hint Small clue
A (9)
B (11)
C (14)
D (17)
Explanation opens after your attempt
Step 1
Concept
(x(x+3)=154) gives (x=11). In a word problem, clearly writing what the variable means is the first step.
Step 2
Why this answer is correct
The correct answer is B. (11). (x(x+3)=154) gives (x=11). In a word problem, clearly writing what the variable means is the first step.
Step 3
Exam Tip
(x(x+3)=154) से (x=11) मिलता है। शब्द समस्या में चर का अर्थ साफ लिखना सबसे पहला कदम है।
Login to save your score, XP, coins and progress. Login