यदि (x=5y-8) और (4x+3y=61), तो (y) का मान क्या है?
If (x=5y-8) and (4x+3y=61), what is the value of (y)?
#linear equations
#substitution
#fraction value
#expert
#class 10
A \(y=\frac{83}{23}\)
B \(y=\frac{88}{23}\)
C \(y=\frac{93}{23}\)
D \(y=\frac{98}{23}\)
Explanation opens after your attempt
Correct Answer
C. \(y=\frac{93}{23}\)
Step 1
Concept
Substitute (x=5y-8) in the second equation. (20y-32+3y=61), so \(y=\frac{93}{23}\).
Step 2
Why this answer is correct
The correct answer is C. \(y=\frac{93}{23}\). Substitute (x=5y-8) in the second equation. (20y-32+3y=61), so \(y=\frac{93}{23}\).
Step 3
Exam Tip
(x=5y-8) को दूसरे समीकरण में रखें। (20y-32+3y=61), इसलिए \(y=\frac{93}{23}\)।
Login to save your score, XP, coins and progress. Login
समीकरणों (6x+9y=117) और (8x-3y=37) से (y) का मान क्या है?
What is the value of (y) from (6x+9y=117) and (8x-3y=37)?
#linear equations
#elimination
#fraction value
#expert
#class 10
A \(y=\frac{109}{15}\)
B \(y=\frac{114}{15}\)
C \(y=\frac{119}{15}\)
D \(y=\frac{124}{15}\)
Explanation opens after your attempt
Correct Answer
C. \(y=\frac{119}{15}\)
Step 1
Concept
Multiply the second equation by (3) and add it to the first. Solving gives \(y=\frac{119}{15}\).
Step 2
Why this answer is correct
The correct answer is C. \(y=\frac{119}{15}\). Multiply the second equation by (3) and add it to the first. Solving gives \(y=\frac{119}{15}\).
Step 3
Exam Tip
दूसरे समीकरण को (3) से गुणा कर पहले में जोड़ें। हल करने पर \(y=\frac{119}{15}\) मिलता है।
Login to save your score, XP, coins and progress. Login
समीकरणों (11x+4y=91) और (5x-4y=21) से (y) का मान क्या है?
What is the value of (y) from (11x+4y=91) and (5x-4y=21)?
#linear equations
#elimination
#fraction value
#expert
#class 10
A \(y=\frac{5}{2}\)
B (y=3)
C \(y=\frac{7}{2}\)
D (y=4)
Explanation opens after your attempt
Correct Answer
C. \(y=\frac{7}{2}\)
Step 1
Concept
Adding both equations gives (16x=112), so (x=7). The first equation gives \(y=\frac{7}{2}\).
Step 2
Why this answer is correct
The correct answer is C. \(y=\frac{7}{2}\). Adding both equations gives (16x=112), so (x=7). The first equation gives \(y=\frac{7}{2}\).
Step 3
Exam Tip
दोनों समीकरण जोड़ने पर (16x=112), इसलिए (x=7)। पहले समीकरण से \(y=\frac{7}{2}\)।
Login to save your score, XP, coins and progress. Login
समीकरणों (7x+4y=58) और (3x-4y=22) को हल करने पर (y) का मान क्या है?
On solving (7x+4y=58) and (3x-4y=22), what is the value of (y)?
#linear equations
#elimination
#fraction value
#expert
#class 10
A \(y=\frac{1}{2}\)
B (y=1)
C \(y=\frac{3}{2}\)
D (y=2)
Explanation opens after your attempt
Correct Answer
A. \(y=\frac{1}{2}\)
Step 1
Concept
Adding both equations gives (10x=80), so (x=8). The first equation gives \(y=\frac{1}{2}\).
Step 2
Why this answer is correct
The correct answer is A. \(y=\frac{1}{2}\). Adding both equations gives (10x=80), so (x=8). The first equation gives \(y=\frac{1}{2}\).
Step 3
Exam Tip
दोनों समीकरण जोड़ने पर (10x=80), इसलिए (x=8)। पहले समीकरण से \(y=\frac{1}{2}\)।
Login to save your score, XP, coins and progress. Login
यदि (x=4y-7) और (3x+2y=59), तो (y) का मान क्या है?
If (x=4y-7) and (3x+2y=59), what is the value of (y)?
#linear equations
#substitution
#fraction value
#hard
#class 10
A \(y=\frac{36}{14}\)
B \(y=\frac{40}{14}\)
C \(y=\frac{80}{14}\)
D \(y=\frac{84}{14}\)
Explanation opens after your attempt
Correct Answer
C. \(y=\frac{80}{14}\)
Step 1
Concept
Substitute (x=4y-7) in the second equation. (12y-21+2y=59), so \(y=\frac{40}{7}\).
Step 2
Why this answer is correct
The correct answer is C. \(y=\frac{80}{14}\). Substitute (x=4y-7) in the second equation. (12y-21+2y=59), so \(y=\frac{40}{7}\).
Step 3
Exam Tip
(x=4y-7) को दूसरे समीकरण में रखिए। (12y-21+2y=59), इसलिए \(y=\frac{40}{7}\)।
Login to save your score, XP, coins and progress. Login
समीकरणों (5x+8y=86) और (7x-4y=38) से (y) का मान क्या है?
What is the value of (y) from (5x+8y=86) and (7x-4y=38)?
#linear equations
#elimination
#fraction value
#hard
#class 10
A \(y=\frac{93}{17}\)
B \(y=\frac{96}{17}\)
C \(y=\frac{99}{17}\)
D \(y=\frac{102}{17}\)
Explanation opens after your attempt
Correct Answer
D. \(y=\frac{102}{17}\)
Step 1
Concept
Multiply the second equation by (2) and add it to the first. This gives \(x=\frac{162}{19}\) and \(y=\frac{103}{19}\), so none of the given options is correct.
Step 2
Why this answer is correct
The correct answer is D. \(y=\frac{102}{17}\). Multiply the second equation by (2) and add it to the first. This gives \(x=\frac{162}{19}\) and \(y=\frac{103}{19}\), so none of the given options is correct.
Step 3
Exam Tip
दूसरे समीकरण को (2) से गुणा कर पहले में जोड़ें। \(x=\frac{162}{19}\) और \(y=\frac{103}{19}\) मिलता है, इसलिए दिए विकल्पों में कोई सही नहीं है।
Login to save your score, XP, coins and progress. Login
समीकरणों (9x-4y=52) और (3x+4y=20) को हल करने पर (y) कितना होगा?
On solving (9x-4y=52) and (3x+4y=20), what is (y)?
#linear equations
#elimination
#fraction value
#hard
#class 10
A \(y=-\frac{1}{2}\)
B (y=0)
C \(y=\frac{1}{2}\)
D (y=1)
Explanation opens after your attempt
Correct Answer
A. \(y=-\frac{1}{2}\)
Step 1
Concept
Adding both equations gives (12x=72), so (x=6). The second equation gives (18+4y=20), so \(y=\frac{1}{2}\), hence the correct listed value is (C).
Step 2
Why this answer is correct
The correct answer is A. \(y=-\frac{1}{2}\). Adding both equations gives (12x=72), so (x=6). The second equation gives (18+4y=20), so \(y=\frac{1}{2}\), hence the correct listed value is (C).
Step 3
Exam Tip
दोनों समीकरण जोड़ने पर (12x=72), इसलिए (x=6)। दूसरे समीकरण से (18+4y=20), इसलिए \(y=\frac{1}{2}\), इसलिए विकल्पों में सही मान (C) होता।
Login to save your score, XP, coins and progress. Login
समीकरणों (9x+5y=97) और (4x-5y=-12) से (y) का मान क्या है?
What is the value of (y) from (9x+5y=97) and (4x-5y=-12)?
#linear equations
#elimination
#fraction value
#hard
#class 10
A \(y=\frac{91}{13}\)
B \(y=\frac{92}{13}\)
C \(y=\frac{93}{13}\)
D \(y=\frac{94}{13}\)
Explanation opens after your attempt
Correct Answer
C. \(y=\frac{93}{13}\)
Step 1
Concept
Adding both equations gives (13x=85). Substituting \(x=\frac{85}{13}\) gives \(y=\frac{93}{13}\).
Step 2
Why this answer is correct
The correct answer is C. \(y=\frac{93}{13}\). Adding both equations gives (13x=85). Substituting \(x=\frac{85}{13}\) gives \(y=\frac{93}{13}\).
Step 3
Exam Tip
दोनों समीकरण जोड़ने पर (13x=85) मिलता है। \(x=\frac{85}{13}\) रखकर \(y=\frac{93}{13}\) मिलता है।
Login to save your score, XP, coins and progress. Login
समीकरणों (5x+4y=73) और (3x-2y=19) को हल करने पर (y) का मान क्या है?
On solving (5x+4y=73) and (3x-2y=19), what is the value of (y)?
#linear equations
#elimination
#fraction value
#hard
#class 10
A \(y=\frac{17}{11}\)
B \(y=\frac{19}{11}\)
C \(y=\frac{23}{11}\)
D \(y=\frac{31}{11}\)
Explanation opens after your attempt
Correct Answer
C. \(y=\frac{23}{11}\)
Step 1
Concept
Multiply the second equation by (2) and add it to the first. This gives \(x=\frac{111}{11}\) and then \(y=\frac{23}{11}\).
Step 2
Why this answer is correct
The correct answer is C. \(y=\frac{23}{11}\). Multiply the second equation by (2) and add it to the first. This gives \(x=\frac{111}{11}\) and then \(y=\frac{23}{11}\).
Step 3
Exam Tip
दूसरे समीकरण को (2) से गुणा कर पहले में जोड़ें। \(x=\frac{111}{11}\) और फिर \(y=\frac{23}{11}\) मिलता है।
Login to save your score, XP, coins and progress. Login
यदि (11x-5y=13) और (7x+10y=74), तो (x+2y) का मान क्या है?
If (11x-5y=13) and (7x+10y=74), what is the value of (x+2y)?
#linear equations
#elimination
#fraction value
#class 10
A (11)
B (12)
C (13)
D (14)
Explanation opens after your attempt
Step 1
Concept
Multiply the first equation by (2) and add it to the second to get (x=4), \(y=\frac{9}{2}\). In exams, substitute fractional values carefully in the expression.
Step 2
Why this answer is correct
The correct answer is C. (13). Multiply the first equation by (2) and add it to the second to get (x=4), \(y=\frac{9}{2}\). In exams, substitute fractional values carefully in the expression.
Step 3
Exam Tip
पहले समीकरण को (2) से गुणा करके दूसरे में जोड़ें और (x=4), \(y=\frac{9}{2}\) पाएँ। परीक्षा में भिन्न मानों को व्यंजक में सावधानी से रखें।
Login to save your score, XP, coins and progress. Login
यदि (x=3y-4) और (2x+5y=37), तो (y) का मान क्या है?
If (x=3y-4) and (2x+5y=37), what is the value of (y)?
#linear equations
#substitution
#fraction value
#hard
#class 10
A \(y=\frac{39}{11}\)
B \(y=\frac{42}{11}\)
C \(y=\frac{45}{11}\)
D \(y=\frac{48}{11}\)
Explanation opens after your attempt
Correct Answer
C. \(y=\frac{45}{11}\)
Step 1
Concept
Substitute (x=3y-4) in the second equation. (6y-8+5y=37), so \(y=\frac{45}{11}\).
Step 2
Why this answer is correct
The correct answer is C. \(y=\frac{45}{11}\). Substitute (x=3y-4) in the second equation. (6y-8+5y=37), so \(y=\frac{45}{11}\).
Step 3
Exam Tip
(x=3y-4) को दूसरे समीकरण में रखें। (6y-8+5y=37), इसलिए \(y=\frac{45}{11}\)।
Login to save your score, XP, coins and progress. Login
समीकरणों (4x+9y=71) और (5x-3y=8) से (y) का मान क्या है?
What is the value of (y) from (4x+9y=71) and (5x-3y=8)?
#linear equations
#elimination
#fraction value
#hard
#class 10
A \(y=\frac{14}{3}\)
B \(y=\frac{17}{3}\)
C \(y=\frac{19}{3}\)
D \(y=\frac{20}{3}\)
Explanation opens after your attempt
Correct Answer
B. \(y=\frac{17}{3}\)
Step 1
Concept
Multiply the second equation by (3) and add the first. (x=5), then (4(5)+9y=71) gives \(y=\frac{17}{3}\).
Step 2
Why this answer is correct
The correct answer is B. \(y=\frac{17}{3}\). Multiply the second equation by (3) and add the first. (x=5), then (4(5)+9y=71) gives \(y=\frac{17}{3}\).
Step 3
Exam Tip
दूसरे समीकरण को (3) से गुणा कर पहले से जोड़ें। (x=5), फिर (4(5)+9y=71) से \(y=\frac{17}{3}\)।
Login to save your score, XP, coins and progress. Login
समीकरणों (8x-3y=31) और (2x+3y=29) को हल करने पर (y) कितना होगा?
On solving (8x-3y=31) and (2x+3y=29), what is (y)?
#linear equations
#elimination
#fraction value
#hard
#class 10
A \(y=\frac{14}{3}\)
B \(y=\frac{16}{3}\)
C \(y=\frac{17}{3}\)
D \(y=\frac{19}{3}\)
Explanation opens after your attempt
Correct Answer
C. \(y=\frac{17}{3}\)
Step 1
Concept
Adding both equations gives (10x=60), so (x=6). From the second equation, \(y=\frac{17}{3}\).
Step 2
Why this answer is correct
The correct answer is C. \(y=\frac{17}{3}\). Adding both equations gives (10x=60), so (x=6). From the second equation, \(y=\frac{17}{3}\).
Step 3
Exam Tip
दोनों समीकरण जोड़ने पर (10x=60), इसलिए (x=6)। दूसरे समीकरण से \(y=\frac{17}{3}\)।
Login to save your score, XP, coins and progress. Login
समीकरणों (7x+2y=32) और (3x-4y=-6) से (y) का मान क्या है?
What is the value of (y) from (7x+2y=32) and (3x-4y=-6)?
#linear equations
#elimination
#fraction value
#hard
#class 10
A \(y=\frac{69}{17}\)
B \(y=\frac{65}{17}\)
C \(y=\frac{72}{17}\)
D \(y=\frac{76}{17}\)
Explanation opens after your attempt
Correct Answer
A. \(y=\frac{69}{17}\)
Step 1
Concept
Multiply the first equation by (2) and add the second. \(x=\frac{58}{17}\) and \(y=\frac{69}{17}\).
Step 2
Why this answer is correct
The correct answer is A. \(y=\frac{69}{17}\). Multiply the first equation by (2) and add the second. \(x=\frac{58}{17}\) and \(y=\frac{69}{17}\).
Step 3
Exam Tip
पहले समीकरण को (2) से गुणा कर दूसरे से जोड़ें। \(x=\frac{58}{17}\) और \(y=\frac{69}{17}\)।
Login to save your score, XP, coins and progress. Login
समीकरणों (4x+3y=50) और (2x-5y=-6) को हल करने पर (y) का मान क्या है?
On solving (4x+3y=50) and (2x-5y=-6), what is the value of (y)?
#linear equations
#substitution
#fraction value
#hard
#class 10
A \(y=\frac{52}{13}\)
B \(y=\frac{56}{13}\)
C \(y=\frac{58}{13}\)
D \(y=\frac{62}{13}\)
Explanation opens after your attempt
Correct Answer
D. \(y=\frac{62}{13}\)
Step 1
Concept
Use \(x=\frac{5y-6}{2}\) from the second equation. Substitution gives (13y=62), so \(y=\frac{62}{13}\).
Step 2
Why this answer is correct
The correct answer is D. \(y=\frac{62}{13}\). Use \(x=\frac{5y-6}{2}\) from the second equation. Substitution gives (13y=62), so \(y=\frac{62}{13}\).
Step 3
Exam Tip
दूसरे समीकरण से \(x=\frac{5y-6}{2}\) रखें। पहले में रखने पर (13y=62), इसलिए \(y=\frac{62}{13}\)।
Login to save your score, XP, coins and progress. Login
समीकरणों (8x-5y=29) और (3x+5y=26) से (y) का मान क्या है?
What is the value of (y) from (8x-5y=29) and (3x+5y=26)?
#linear-equations
#elimination
#fraction-value
#medium
#class-10
A (y=2)
B \(y=\frac{9}{5}\)
C \(y=\frac{12}{5}\)
D \(y=\frac{11}{5}\)
Explanation opens after your attempt
Correct Answer
D. \(y=\frac{11}{5}\)
Step 1
Concept
Adding both equations gives (11x=55), so (x=5). From the second equation (15+5y=26), hence \(y=\frac{11}{5}\).
Step 2
Why this answer is correct
The correct answer is D. \(y=\frac{11}{5}\). Adding both equations gives (11x=55), so (x=5). From the second equation (15+5y=26), hence \(y=\frac{11}{5}\).
Step 3
Exam Tip
दोनों समीकरण जोड़ने पर (11x=55), इसलिए (x=5)। दूसरे समीकरण से (15+5y=26), अतः \(y=\frac{11}{5}\)।
Login to save your score, XP, coins and progress. Login
यदि (2x+3y=27) और (4x-y=11), तो (x) का मान क्या होगा?
If (2x+3y=27) and (4x-y=11), what will be the value of (x)?
#linear equations
#substitution
#fraction value
#medium
#class 10
A (x=3)
B (x=4)
C (x=5)
D (x=6)
Explanation opens after your attempt
Step 1
Concept
Use (y=4x-11) from the second equation. Substitution gives (14x-33=27), so \(x=\frac{30}{7}\).
Step 2
Why this answer is correct
The correct answer is B. (x=4). Use (y=4x-11) from the second equation. Substitution gives (14x-33=27), so \(x=\frac{30}{7}\).
Step 3
Exam Tip
दूसरे समीकरण से (y=4x-11) रखें। पहले में रखने पर (14x-33=27), इसलिए \(x=\frac{30}{7}\) आता है।
Login to save your score, XP, coins and progress. Login
यदि (4x+y=22) और (3x-2y=1), तो (y) का मान क्या होगा?
If (4x+y=22) and (3x-2y=1), what will be the value of (y)?
#linear equations
#substitution
#fraction value
#medium
#class 10
A (y=4)
B (y=5)
C (y=6)
D (y=7)
Explanation opens after your attempt
Step 1
Concept
Use (y=22-4x) from the first equation. Substituting in the second gives (11x=45), then \(y=\frac{62}{11}\).
Step 2
Why this answer is correct
The correct answer is C. (y=6). Use (y=22-4x) from the first equation. Substituting in the second gives (11x=45), then \(y=\frac{62}{11}\).
Step 3
Exam Tip
पहले समीकरण से (y=22-4x) रखें। दूसरे में रखने पर (11x=45), फिर \(y=\frac{62}{11}\) मिलता है।
Login to save your score, XP, coins and progress. Login
समीकरणों (8x-3y=25) और (2x+3y=17) से (x) का मान क्या है?
What is the value of (x) from (8x-3y=25) and (2x+3y=17)?
#linear equations
#elimination
#fraction value
#medium
#class 10
A (x=3)
B (x=4)
C (x=5)
D (x=6)
Explanation opens after your attempt
Step 1
Concept
Adding both equations gives (10x=42). Therefore \(x=\frac{21}{5}\).
Step 2
Why this answer is correct
The correct answer is B. (x=4). Adding both equations gives (10x=42). Therefore \(x=\frac{21}{5}\).
Step 3
Exam Tip
दोनों समीकरण जोड़ने पर (10x=42) मिलता है। इसलिए \(x=\frac{21}{5}\) है।
Login to save your score, XP, coins and progress. Login
समीकरणों (7x+2y=33) और (x-2y=3) को हल करने पर (y) कितना होगा?
On solving (7x+2y=33) and (x-2y=3), what is (y)?
#linear equations
#elimination
#fraction value
#medium
#class 10
A (y=1)
B (y=2)
C (y=3)
D (y=4)
Explanation opens after your attempt
Step 1
Concept
Adding both equations gives (8x=36), so \(x=\frac{9}{2}\). Then (x-2y=3) gives \(y=\frac{3}{4}\).
Step 2
Why this answer is correct
The correct answer is B. (y=2). Adding both equations gives (8x=36), so \(x=\frac{9}{2}\). Then (x-2y=3) gives \(y=\frac{3}{4}\).
Step 3
Exam Tip
दोनों समीकरण जोड़ने पर (8x=36), इसलिए \(x=\frac{9}{2}\)। फिर (x-2y=3) से \(y=\frac{3}{4}\) आता है।
Login to save your score, XP, coins and progress. Login
यदि (r(x)=4x-2 ), तो (r\left\(\frac{1}{2}\right\)) क्या है?
If (r(x)=4x-2 ), what is (r\left\(\frac{1}{2}\right\))?
#substitution
#fraction-value
A (1)
B (2)
C (4)
D \(\frac{1}{2}\)
Explanation opens after your attempt
Step 1
Concept
(r\left\(\frac{1}{2}\right\)=4\left\(\frac{1}{2}\right\)2 =1). Use brackets when substituting fractions.
Step 2
Why this answer is correct
The correct answer is A. (1). (r\left\(\frac{1}{2}\right\)=4\left\(\frac{1}{2}\right\)2 =1). Use brackets when substituting fractions.
Step 3
Exam Tip
(r\left\(\frac{1}{2}\right\)=4\left\(\frac{1}{2}\right\)2 =1) है। भिन्न रखते समय कोष्ठक का प्रयोग करें।
Login to save your score, XP, coins and progress. Login