100 results found for "ap known-term backward class10" in Class 10.
If the (11)th term of an AP is (52) and (d=5), what is \(a_2\)?
A. (7)
\(a_2=a_{11}-9d=52-45=7\)। ज्ञात पद से पीछे आने पर स्थानों का अंतर गुणा करके घटाएं। / \(a_2=a_{11}-9d=52-45=7\). When moving backward from a known term, subtract the position gap times (d).
Login to save your score, XP, coins and progress.
If the (5)th term of an AP is (16) and the (9)th term is (32), what is the (13)th term?
C. (48)
\(d=\frac{32-16}{9-5}=4\), इसलिए \(a_{13}=32+4\times4=48\)। समान स्थान अंतर होने पर पदों का अंतर भी समान होता है। / \(d=\frac{32-16}{9-5}=4\), so \(a_{13}=32+4\times4=48\). Equal position gaps give equal term gaps in an AP.
Login to save your score, XP, coins and progress.
If in an AP \(a_{18}=130\) and (d=8), what is \(a_4\)?
A. (18)
\(a_4=a_{18}-14d=130-112=18\)। पीछे जाते समय स्थान अंतर को (d) से गुणा करके घटाएं। / \(a_4=a_{18}-14d=130-112=18\). While moving backward multiply the position gap by (d) and subtract.
Login to save your score, XP, coins and progress.
If in an AP \(a_{16}=91\) and (d=6), what is \(a_3\)?
D. (19)
\(a_3=a_{16}-13d=91-78=13\)। पीछे जाते समय स्थानों के अंतर को (d) से गुणा करके घटाएं। / \(a_3=a_{16}-13d=91-78=13\). While moving backward, multiply the position gap by (d) and subtract.
Login to save your score, XP, coins and progress.
The (12)th term of an AP is (71) and the common difference is (5). What is the first term?
D. (16)
\(71=a+11\times5\) से (a=16)। ज्ञात पद से पहले पद तक जाने के लिए (11d) घटाएं। / From \(71=a+11\times5\), (a=16). To move from the known term to the first term subtract (11d).
Login to save your score, XP, coins and progress.
If the (5)th term of an AP is (27) and the (14)th term is (90), what is the (20)th term?
C. (132)
\(d=\frac{90-27}{14-5}=7\) और \(a_{20}=90+6\times7=132\)। पहले (d) निकालें फिर आगे बढ़ें। / \(d=\frac{90-27}{14-5}=7\) and \(a_{20}=90+6\times7=132\). First find (d) then move forward.
Login to save your score, XP, coins and progress.
If the (4)th term of an AP is (15) and the (12)th term is (55), what is the (16)th term?
C. (75)
\(d=\frac{55-15}{12-4}=5\) और \(a_{16}=55+4\times5=75\)। पहले (d) फिर वांछित पद निकालें। / \(d=\frac{55-15}{12-4}=5\) and \(a_{16}=55+4\times5=75\). First find (d), then the required term.
Login to save your score, XP, coins and progress.
If the (3)rd term of an AP is (8) and the (8)th term is (3), what is the (11)th term?
A. (0)
\(d=\frac{3-8}{8-3}=-1\), इसलिए (a_{11}=3+3(-1)=0)। ज्ञात पास वाले पद से आगे बढ़ना सरल है। / \(d=\frac{3-8}{8-3}=-1\), so (a_{11}=3+3(-1)=0). Moving from the nearer known term is simple.
Login to save your score, XP, coins and progress.
If the (p)th term of an AP is (q) and the (q)th term is (p), what is its ((p+q))th term?
A. (0)
संबंधों को घटाने पर (d=-1) और आगे रखने पर \(a_{p+q}=0\) मिलता है। प्रतीकात्मक AP में भी (a_n=a+(n-1)d) ही लगाएं। / Subtracting the relations gives (d=-1), and substitution gives \(a_{p+q}=0\). Even in symbolic APs, use (a_n=a+(n-1)d).
Login to save your score, XP, coins and progress.
A. स्थान संकेतों में असंगति हैThere is inconsistency in spatial cues
रंग ताप भी दूरी की अनुभूति बदल सकता है। परीक्षा में depth cues की संगति जांचें। / Colour temperature can change sense of distance. Exam tip: check consistency of depth cues.
Login to save your score, XP, coins and progress.
Why is it wrong to call an organism backward in evolution just because it looks simple?
A. क्योंकि सरल जीव भी अपने वातावरण में सफल अनुकूलन रख सकता हैBecause a simple organism may be successfully adapted to its environment
विकास का अर्थ हमेशा अधिक जटिल होना नहीं है। / Evolution does not always mean becoming more complex.
जीव की सफलता उसके वातावरण में अनुकूलन पर निर्भर करती है। / Success of an organism depends on adaptation to its environment.
सरल दिखने वाला जीव भी सफल हो सकता है। / A simple looking organism can also be successful.
Login to save your score, XP, coins and progress.
If an organism looks simple today is it correct to call it backward in evolution?
A. नहीं क्योंकि वह अपने वातावरण के अनुकूल हो सकता हैNo because it may be adapted to its environment
विकास का अर्थ हमेशा अधिक जटिल होना नहीं है। / Evolution does not always mean becoming more complex.
जीव अपने वातावरण के अनुसार अनुकूल हो सकते हैं। / Organisms adapt according to their environment.
सरल दिखने वाला जीव भी सफल और अच्छी तरह अनुकूल हो सकता है। / A simple looking organism can also be successful and well adapted.
Login to save your score, XP, coins and progress.
The (14)th term of an AP is (92) and (d=7). What is \(a_1\)?
A. (1)
\(92=a+13\times7\) से (a=1)। (14)वें पद से पहले पद तक (13d) घटता है। / From \(92=a+13\times7\), (a=1). From the (14)th term to the first term (13d) is subtracted.
Login to save your score, XP, coins and progress.
The (10)th term of an AP is (62) and (d=5). What is \(a_1\)?
D. (17)
\(62=a+9\times5\) से (a=17)। (10)वें पद से पहले पद तक (9d) घटता है। / From \(62=a+9\times5\), (a=17). From the (10)th term to the first term, subtract (9d).
Login to save your score, XP, coins and progress.
The (9)th term of an AP is (47) and the common difference is (4). What is the first term?
D. (15)
\(47=a+8\times4\) से (a=15)। ज्ञात पद से पहले पद तक जाने के लिए (8d) घटाएं। / From \(47=a+8\times4\), (a=15). To move from the known term to the first term, subtract (8d).
Login to save your score, XP, coins and progress.
The (6)th term of an AP is (23) and the common difference is (5). What is the first term?
D. (-2)
(23=a+5d=a+25), इसलिए (a=-2)। दिए गए पद से पीछे जाते समय (5d) घटाया जाता है। / (23=a+5d=a+25), so (a=-2). When moving backward from a given term, subtract (5d).
Login to save your score, XP, coins and progress.
C. (x+82)
(7d=35) से (d=5)। \(a_{20}=a_{12}+8d=x+42+40=x+82\)। / From (7d=35), (d=5). \(a_{20}=a_{12}+8d=x+42+40=x+82\).
Login to save your score, XP, coins and progress.
In an AP \(a_{13}=65\) and \(a_{21}=113\). What is \(a_6\)?
C. (23)
\(d=\frac{113-65}{8}=6\) और \(a_6=65-7\times6=23\)। ज्ञात पद से पीछे जाने पर (d) घटाएं। / \(d=\frac{113-65}{8}=6\) and \(a_6=65-7\times6=23\). When moving backward from a known term subtract (d).
Login to save your score, XP, coins and progress.
In an AP, \(a_{11}=40\) and \(a_{19}=72\). What is \(a_4\)?
C. (12)
\(d=\frac{72-40}{8}=4\) और \(a_4=40-7\times4=12\)। ज्ञात पद से पीछे जाने पर (d) घटाते जाएं। / \(d=\frac{72-40}{8}=4\) and \(a_4=40-7\times4=12\). When moving backward from a known term, subtract (d).
Login to save your score, XP, coins and progress.
In an AP, \(a_{10}=31\) and \(a_{18}=55\). What is \(a_6\)?
B. (19)
\(d=\frac{55-31}{8}=3\), इसलिए \(a_6=31-4\times3=19\)। ज्ञात पद से पीछे आने पर (d) घटाएं। / \(d=\frac{55-31}{8}=3\), so \(a_6=31-4\times3=19\). When moving backward from a known term, subtract (d).
Login to save your score, XP, coins and progress.
The (n)th-term formula of the AP \(23,31,39,\ldots\) is \(a_n=8n+15\). What is the (36)th term?
C. (303)
\(a_{36}=8\times36+15=303\)। बने हुए सूत्र में (n=36) रखकर सीधे उत्तर पाएं। / \(a_{36}=8\times36+15=303\). Put (n=36) in the formed formula to get the answer directly.
Login to save your score, XP, coins and progress.
If the (r)th term of an AP is (3r-2) and (d=4), what is the ((r+6))th term?
C. (3r+22)
((r+6))वां पद (r)वें पद से (6d) आगे है इसलिए (3r-2+24=3r+22)। प्रतीकात्मक प्रश्न में स्थान अंतर देखें। / The ((r+6))th term is (6d) ahead of the (r)th term so (3r-2+24=3r+22). In symbolic questions look at the position gap.
Login to save your score, XP, coins and progress.
The (n)th-term formula of the AP \(19,26,33,\ldots\) is \(a_n=7n+12\). What is the (41)st term?
D. (299)
\(a_{41}=7\times41+12=299\)। बने हुए सूत्र में केवल (n=41) रखें। / \(a_{41}=7\times41+12=299\). Put only (n=41) in the formed formula.
Login to save your score, XP, coins and progress.
If the (m)th term of an AP is (2m+3) and (d=2), what is the ((m+5))th term?
D. (2m+13)
((m+5))वां पद (m)वें पद से (5d) आगे है इसलिए (2m+3+10=2m+13)। प्रतीकात्मक पदों में भी स्थान अंतर देखें। / The ((m+5))th term is (5d) ahead of the (m)th term, so (2m+3+10=2m+13). In symbolic terms, look at the position gap.
Login to save your score, XP, coins and progress.
The first term of an AP is (25) and the (18)th term is (93). What is the common difference?
C. (4)
(93=25+17d) से (68=17d) इसलिए (d=4)। (18)वें पद के लिए गुणक (17) होता है। / From (93=25+17d), (68=17d) so (d=4). For the (18)th term, the multiplier is (17).
Login to save your score, XP, coins and progress.
The (n)th term of the AP \(11,17,23,\ldots\) is \(a_n=6n+5\). What is its (32)nd term?
B. (197)
\(a_{32}=6\times32+5=197\)। बनाए गए सूत्र में (n) का सही मान रखें। / \(a_{32}=6\times32+5=197\). Substitute the correct value of (n) in the formed formula.
Login to save your score, XP, coins and progress.
The first term of an AP is (18) and the (16)th term is (93). What is the common difference?
A. (5)
(93=18+15d), इसलिए (75=15d) और (d=5)। (16)वें पद के लिए गुणक (15) होगा। / (93=18+15d), so (75=15d) and (d=5). For the (16)th term, the multiplier is (15).
Login to save your score, XP, coins and progress.
If the (10)th term of an AP is (41) and the (20)th term is (81), what is its common difference?
C. (4)
दो पदों का अंतर (81-41=40) है और पद संख्या का अंतर (10), इसलिए (d=4)। \(दो ज्ञात पदों में (d=\frac{\)पदों का अंतर}{स्थान का अंतर}) लगाएं। \(/ The difference of terms is (81-41=40) and the difference of positions is (10), so (d=4). Use (d=\frac{\)difference of terms}{difference of positions}).
Login to save your score, XP, coins and progress.
If the first term of an AP is (7) and the common difference is (4), what is its (18)th term?
A. (75)
सूत्र (a_n=a+(n-1)d) लगाने पर \(7+17\times4=75\)। परीक्षा में (n-1) को भूलना नहीं चाहिए। / Using (a_n=a+(n-1)d), \(7+17\times4=75\). Exam tip: do not forget (n-1).
Login to save your score, XP, coins and progress.
If the (4)th term of an AP is (21) and (d=6), what is the (10)th term?
C. (57)
(10)वाँ पद (4)थे पद से (6d) आगे है इसलिए (21+36=57)। पद संख्या का अंतर सीधे उपयोग करें। / The (10)th term is (6d) after the (4)th term, so (21+36=57). Use the difference in term numbers directly.
Login to save your score, XP, coins and progress.
If the first term of an AP is (-12) and the common difference is (5), what is the (16)th term?
B. (63)
\(a_{16}=-12+15\times5=63\)। पहले (15d) निकालें फिर प्रथम पद जोड़ें। / \(a_{16}=-12+15\times5=63\). First calculate (15d), then add the first term.
Login to save your score, XP, coins and progress.
If the first term of an AP is (9) and the common difference is (10), what is the (7)th term?
B. (69)
\(a_7=9+6\times10=69\)। (7)वें पद के लिए (6d) जोड़ना होता है। / \(a_7=9+6\times10=69\). For the (7)th term, (6d) is added.
Login to save your score, XP, coins and progress.
If the (3)rd term of an AP is (14) and (d=5), what is the (7)th term?
C. (34)
(7)वाँ पद (3)रे पद से (4d) आगे है इसलिए (14+20=34)। बीच के पदों की संख्या सही गिनें। / The (7)th term is (4d) after the (3)rd term, so (14+20=34). Count the gap between terms correctly.
Login to save your score, XP, coins and progress.
If the first term of an AP is (-2) and the common difference is (6), what is the (12)th term?
B. (64)
\(a_{12}=-2+11\times6=64\)। पहले गुणा करें फिर (-2) जोड़ें। / \(a_{12}=-2+11\times6=64\). Multiply first and then add (-2).
Login to save your score, XP, coins and progress.
If the (5)th term of an AP is (22) and (d=6), what is the (8)th term?
D. (40)
(8)वाँ पद (5)वें पद से (3d) आगे है इसलिए (22+18=40)। पदों का अंतर गिनना आसान तरीका है। / The (8)th term is (3d) after the (5)th term, so (22+18=40). Counting the gap between terms is an easy method.
Login to save your score, XP, coins and progress.
If the (7)th term of an AP is (31) and (d=4), what is the (10)th term?
C. (43)
(10)वाँ पद (7)वें पद से (3d) आगे है इसलिए \(31+3\times4=43\)। पास के पदों के लिए अंतर विधि तेज होती है। / The (10)th term is (3d) after the (7)th term, so \(31+3\times4=43\). The difference method is quick for nearby terms.
Login to save your score, XP, coins and progress.
If the first term of an AP is (15) and the common difference is (-4), what is the (8)th term?
A. (-13)
(a_8=15+7(-4)=-13)। ऋणात्मक (d) को कोष्ठक में लिखना उपयोगी है। / (a_8=15+7(-4)=-13). Writing negative (d) in brackets is useful.
Login to save your score, XP, coins and progress.
If the first term of an AP is (5) and common difference is (3), what is the (8)th term?
C. (26)
सूत्र (a_n=a+(n-1)d) लगाएं तो \(5+7\times3=26\)। परीक्षा में (n-1) लेना न भूलें। / Using (a_n=a+(n-1)d), \(5+7\times3=26\). In exams, do not forget (n-1).
Login to save your score, XP, coins and progress.
C. (x+181)
(12d=72), इसलिए (d=6)। \(a_{35}=x+91+15\times6=x+181\)। / (12d=72), so (d=6). \(a_{35}=x+91+15\times6=x+181\).
Login to save your score, XP, coins and progress.
B. (x+188)
(11d=77) से (d=7)। \(a_{32}=a_{18}+14d=x+90+98=x+188\)। / From (11d=77), (d=7). \(a_{32}=a_{18}+14d=x+90+98=x+188\).
Login to save your score, XP, coins and progress.
B. (x+137)
(9d=54) से (d=6)। \(a_{27}=a_{15}+12d=x+65+72=x+137\)। / From (9d=54), (d=6). \(a_{27}=a_{15}+12d=x+65+72=x+137\).
Login to save your score, XP, coins and progress.
The general term of an AP is \(a_n=7n+2\). Find the (11)th term.
C. (79)
\(a_{11}=7\times11+2=79\)। सामान्य पद में सही पद संख्या रखना ही मुख्य कदम है। / \(a_{11}=7\times11+2=79\). The main step is substituting the correct term number in the general term.
Login to save your score, XP, coins and progress.
If \(a_5=24\) and (d=8), what is the value of \(a_{19}\)?
B. (136)
(a_{19}=a_5+(19-5)d=24+14\times8=136)। ज्ञात पद से सीधे स्थान अंतर जोड़ें। / (a_{19}=a_5+(19-5)d=24+14\times8=136). Add the position gap directly from the known term.
Login to save your score, XP, coins and progress.
If \(a_4=19\) and (d=7), what is \(a_{18}\)?
B. (117)
(a_{18}=a_4+(18-4)d=19+14\times7=117)। ज्ञात पद से सीधे अंतर जोड़ें। / (a_{18}=a_4+(18-4)d=19+14\times7=117). Add the gap directly from the known term.
Login to save your score, XP, coins and progress.
In an AP, \(a_3=11\) and (d=6). What is \(a_{17}\)?
B. (95)
(a_{17}=a_3+(17-3)d=11+14\times6=95)। किसी ज्ञात पद से सीधे आगे बढ़ना आसान है। / (a_{17}=a_3+(17-3)d=11+14\times6=95). Moving directly from a known term is easier.
Login to save your score, XP, coins and progress.
The (n)th term of the AP \(73,68,63,\ldots\) is (-12). What is (n)?
C. (18)
(-12=73+(n-1)(-5)) से (85=5(n-1)) इसलिए (n=18)। घटती AP में ऋणात्मक लक्ष्य तक चिन्ह सही रखें। / From (-12=73+(n-1)(-5)), (85=5(n-1)) so (n=18). In a decreasing AP keep signs correct up to the negative target.
Login to save your score, XP, coins and progress.
If the (19)th term of the AP \(z,z+5,z+10,\ldots\) is (112), what is (z)?
C. (22)
\(112=z+18\times5\) से (z=22)। चर वाले पहले पद को (a) मानकर सूत्र लगाएं। / From \(112=z+18\times5\), (z=22). Treat the variable first term as (a) and apply the formula.
Login to save your score, XP, coins and progress.
In the AP \(7,12,17,\ldots\), what is the last term less than (180)?
C. (177)
पद (7+5(n-1)) हैं। (180) से कम अंतिम पद (177) है क्योंकि अगला पद (182) होगा। / The terms are (7+5(n-1)). The last term less than (180) is (177) because the next term will be (182).
Login to save your score, XP, coins and progress.
In an AP (a=63) and (d=-4). Which term will be (-1)?
C. (17)वां(17)th
(-1=63+(n-1)(-4)) से (64=4(n-1)) इसलिए (n=17)। ऋणात्मक लक्ष्य पद में चिन्हों को ध्यान से संभालें। / From (-1=63+(n-1)(-4)), (64=4(n-1)) so (n=17). Handle signs carefully with a negative target term.
Login to save your score, XP, coins and progress.
Which is the first negative term of the AP \(105,98,91,\ldots\)?
C. (17)वां(17)th
(a_n=105+(n-1)(-7)=112-7n)। \(a_n<0\) से (n>16) इसलिए पहला ऋणात्मक पद (17)वां है। / (a_n=105+(n-1)(-7)=112-7n). From \(a_n<0\), (n>16) so the first negative term is the (17)th.
Login to save your score, XP, coins and progress.
Which term of the AP \(26,35,44,\ldots\) is (206)?
C. (21)वां(21)st
(206=26+(n-1)9) से (180=9(n-1)) इसलिए (n=21)। पद और पहले पद का अंतर (d) से भाग दें। / From (206=26+(n-1)9), (180=9(n-1)) so (n=21). Divide the difference between the term and first term by (d).
Login to save your score, XP, coins and progress.
Which term of the AP \(9,17,25,\ldots\) is (201)?
C. (25)वां(25)th
(201=9+(n-1)8) से (192=8(n-1)) और (n=25)। पद संख्या पूर्णांक आए तो उत्तर सही दिशा में है। / From (201=9+(n-1)8), (192=8(n-1)) and (n=25). If the term number is an integer the answer is on the right track.
Login to save your score, XP, coins and progress.
The (n)th term of the AP \(55,51,47,\ldots\) is (-17). What is (n)?
C. (19)
(-17=55+(n-1)(-4)) से (72=4(n-1)) इसलिए (n=19)। ऋणात्मक पद तक जाते समय चिन्ह सही रखें। / From (-17=55+(n-1)(-4)), (72=4(n-1)) so (n=19). Keep signs correct while reaching a negative term.
Login to save your score, XP, coins and progress.
If the (12)th term of the AP \(y,y+6,y+12,\ldots\) is (89), what is the value of (y)?
D. (23)
\(89=y+11\times6\) से (y=23)। चर वाले पहले पद को सीधे (a) मानें। / From \(89=y+11\times6\), (y=23). Treat the variable first term directly as (a).
Login to save your score, XP, coins and progress.
In the AP \(2,6,10,\ldots\), what is the last term less than (75)?
A. (74)
इस श्रेणी के पद (2+4(n-1)) हैं। (75) से कम अंतिम पद (74) है। / The terms of this sequence are (2+4(n-1)). The last term less than (75) is (74).
Login to save your score, XP, coins and progress.
In an AP, (a=48) and (d=-3). Which term will be (0)?
C. (17)वां(17)th
(0=48+(n-1)(-3)) से (3(n-1)=48) इसलिए (n=17)। शून्य पद के लिए भी सामान्य सूत्र लगाएं। / From (0=48+(n-1)(-3)), (3(n-1)=48) so (n=17). Use the usual formula even for the zero term.
Login to save your score, XP, coins and progress.
Which is the first negative term of the AP \(72,66,60,\ldots\)?
B. (14)वां(14)th
(a_n=72+(n-1)(-6)=78-6n)। \(a_n<0\) से (n>13) इसलिए पहला ऋणात्मक पद (14)वां है। / (a_n=72+(n-1)(-6)=78-6n). From \(a_n<0\), (n>13) so the first negative term is the (14)th.
Login to save your score, XP, coins and progress.
Which term of the AP \(14,23,32,\ldots\) is (185)?
C. (20)वां(20)th
(185=14+(n-1)9) से (171=9(n-1)) और (n=20)। अंतर को (d) से भाग देकर पद संख्या पाएं। / From (185=14+(n-1)9), (171=9(n-1)) and (n=20). Divide the difference by (d) to get the term number.
Login to save your score, XP, coins and progress.
Which term of the AP \(21,29,37,\ldots\) is (149)?
C. (17)वां(17)th
(149=21+(n-1)8) से (128=8(n-1)) इसलिए (n=17)। पद संख्या पूछी हो तो दिए पद को \(a_n\) मानें। / From (149=21+(n-1)8), (128=8(n-1)) so (n=17). When term number is asked, treat the given term as \(a_n\).
Login to save your score, XP, coins and progress.
The (n)th term of the AP \(27,24,21,\ldots\) is (-30). What is (n)?
C. (20)
(-30=27+(n-1)(-3)) से (57=3(n-1)), इसलिए (n=20)। ऋणात्मक लक्ष्य पद में चिन्ह सावधानी से बदलें। / From (-30=27+(n-1)(-3)), (57=3(n-1)), so (n=20). Handle signs carefully with a negative target term.
Login to save your score, XP, coins and progress.
If the (10)th term of the AP \(x, x+4, x+8,\ldots\) is (50), what is the value of (x)?
C. (14)
\(50=x+9\times4\), इसलिए (x=14)। चर वाले पहले पद को (a) मानकर सूत्र लगाएं। / \(50=x+9\times4\), so (x=14). Treat the variable first term as (a) and apply the formula.
Login to save your score, XP, coins and progress.
In an AP, (a=30) and (d=-2). Which term will be (0)?
C. (16)वां(16)th
(0=30+(n-1)(-2)) से (2(n-1)=30), अतः (n=16)। शून्य पद के लिए भी वही (n)वां पद सूत्र लगाएं। / From (0=30+(n-1)(-2)), (2(n-1)=30), so (n=16). Use the same nth-term formula even for the zero term.
Login to save your score, XP, coins and progress.
Which is the first negative term of the AP \(45,40,35,\ldots\)?
B. (11)वां(11)th
(a_n=45+(n-1)(-5)=50-5n)। \(a_n<0\) से (n>10), इसलिए पहला ऋणात्मक पद (11)वां है। / (a_n=45+(n-1)(-5)=50-5n). From \(a_n<0\), (n>10), so the first negative term is the (11)th.
Login to save your score, XP, coins and progress.
Which term of the AP \(15,21,27,\ldots\) is (111)?
C. (17)वां(17)th
(111=15+(n-1)6), इसलिए (96=6(n-1)) और (n=17)। पद संख्या में अंतर को (d) से भाग दें। / (111=15+(n-1)6), so (96=6(n-1)) and (n=17). For term number, divide the difference by (d).
Login to save your score, XP, coins and progress.
The (8)th term of an AP is (35) and (d=4). What is \(a_1\)?
C. (7)
\(35=a+7\times4\), इसलिए (a=7)। (8)वें पद के लिए (7d) घटाएं। / \(35=a+7\times4\), so (a=7). For the (8)th term, subtract (7d).
Login to save your score, XP, coins and progress.
Which term of the AP \(3,8,13,\ldots\) is (88)?
A. (18)वां(18)th
(88=3+(n-1)5) से (85=5(n-1)), अतः (n=18)। पद संख्या के प्रश्न में दिए पद को \(a_n\) मानें। / From (88=3+(n-1)5), (85=5(n-1)), hence (n=18). In term-number questions, treat the given term as \(a_n\).
Login to save your score, XP, coins and progress.
B. (1485)
शर्त से (6+13d=3(6+3d)), इसलिए (d=3) और \(S_{30}=1485\) है। पदों की शर्त को पहले समीकरण में बदलें। / The condition gives (6+13d=3(6+3d)), so (d=3) and \(S_{30}=1485\). Convert the term condition into an equation first.
Login to save your score, XP, coins and progress.
A. (1050)
शर्त से (5+11d=4(5+2d)), इसलिए (d=5) और \(S_{20}=1050\) है। पदों की शर्त को पहले समीकरण में बदलें। / The condition gives (5+11d=4(5+2d)), so (d=5) and \(S_{20}=1050\). Convert the term condition into an equation first.
Login to save your score, XP, coins and progress.
C. (1050)
शर्त से (6+8d=2(6+3d)), इसलिए (d=3) और \(S_{25}=1050\) है। पदों की शर्त को पहले समीकरण में बदलें। / The condition gives (6+8d=2(6+3d)), so (d=3) and \(S_{25}=1050\). Convert the term condition into an equation first.
Login to save your score, XP, coins and progress.
C. (576)
शर्त से (4+7d=3(4+2d)), इसलिए (d=8) और \(S_{12}=576\)। पदों की शर्त को पहले समीकरण में बदलें। / The condition gives (4+7d=3(4+2d)), so (d=8) and \(S_{12}=576\). Convert the term condition into an equation first.
Login to save your score, XP, coins and progress.
The (n)th term of an AP is \(a_n=2n+3\). What will be the (18)th term?
A. (39)
(n=18) रखने पर \(a_{18}=2\times18+3=39\)। दिए गए \(a_n\) में सीधे पद संख्या रखें। / Putting (n=18), \(a_{18}=2\times18+3=39\). Substitute the term number directly in the given \(a_n\).
Login to save your score, XP, coins and progress.
The first term of an AP is (25) and the common difference is (4). What will be the (21)st term?
B. (105)
\(a_{21}=25+20\times4=105\)। पद संख्या से (1) घटाना न भूलें। / \(a_{21}=25+20\times4=105\). Do not forget to subtract (1) from the term number.
Login to save your score, XP, coins and progress.
If the first term of an AP is (6) and the common difference is (7), what is the (11)th term?
D. (76)
\(a_{11}=6+10\times7=76\)। (11)वें पद तक (10) बार अंतर जुड़ता है। / \(a_{11}=6+10\times7=76\). Up to the (11)th term, the difference is added (10) times.
Login to save your score, XP, coins and progress.
In an AP, first term (a=4) and common difference (d=3). What is the (10)th term?
A. (31)
सूत्र (a_n=a+(n-1)d) लगाने पर \(a_{10}=4+9\times3=31\)। परीक्षा में (n-1) को ध्यान से लिखें। / Using (a_n=a+(n-1)d), \(a_{10}=4+9\times3=31\). Exam tip: write (n-1) carefully.
Login to save your score, XP, coins and progress.
If \(a_8=47\) and \(a_{15}=103\), what is \(a_{22}\)?
C. (159)
\(d=\frac{103-47}{15-8}=8\) इसलिए \(a_{22}=103+7\times8=159\)। बराबर दूरी वाले पदों में समान अंतर जोड़ें। / \(d=\frac{103-47}{15-8}=8\) so \(a_{22}=103+7\times8=159\). Add equal term gaps for equally spaced positions.
Login to save your score, XP, coins and progress.
If \(a_9=52\) and \(a_{17}=108\), what is \(a_{25}\)?
B. (164)
\(d=\frac{108-52}{17-9}=7\) इसलिए \(a_{25}=108+8\times7=164\)। समान स्थान अंतर पर पदों का अंतर भी समान रहता है। / \(d=\frac{108-52}{17-9}=7\) so \(a_{25}=108+8\times7=164\). Equal position gaps have equal term gaps in an AP.
Login to save your score, XP, coins and progress.
In an AP \(a_6=38\) and \(a_{15}=101\). What is \(a_{24}\)?
B. (164)
\(d=\frac{101-38}{15-6}=7\) इसलिए \(a_{24}=101+9\times7=164\)। निकट ज्ञात पद से आगे बढ़ना सरल होता है। / \(d=\frac{101-38}{15-6}=7\) so \(a_{24}=101+9\times7=164\). Moving forward from the nearer known term is easier.
Login to save your score, XP, coins and progress.
If \(a_9=42\) and \(a_{16}=77\), what is \(a_{23}\)?
D. (112)
\(d=\frac{77-42}{7}=5\) इसलिए \(a_{23}=77+7\times5=112\)। समान दूरी के पदों में समान वृद्धि होती है। / \(d=\frac{77-42}{7}=5\) so \(a_{23}=77+7\times5=112\). Equally spaced terms have equal increases.
Login to save your score, XP, coins and progress.
If \(a_8=44\) and \(a_{18}=104\), what is \(a_{28}\)?
D. (164)
\(d=\frac{104-44}{10}=6\) इसलिए \(a_{28}=104+10\times6=164\)। समान स्थान अंतर होने पर समान पद अंतर जोड़ें। / \(d=\frac{104-44}{10}=6\) so \(a_{28}=104+10\times6=164\). Add the same term difference for equal position gaps.
Login to save your score, XP, coins and progress.
In an AP, \(a_5=27\) and \(a_{13}=67\). What is the value of \(a_{21}\)?
D. (107)
\(d=\frac{67-27}{13-5}=5\) और \(a_{21}=67+8\times5=107\)। निकट ज्ञात पद से आगे बढ़ना तेज होता है। / \(d=\frac{67-27}{13-5}=5\) and \(a_{21}=67+8\times5=107\). Moving from the nearer known term is faster.
Login to save your score, XP, coins and progress.
Anwar Sadat's open-door economic policy is known by which Arabic term?
D. इन्फिताहInfitah
इन्फिताह सादात की खुली द्वार आर्थिक नीति से जुड़ा शब्द है। परीक्षा में सादात को आर्थिक और शांति दोनों नीतियों से जोड़ें। / Infitah is linked with Sadat's open-door economic policy. For exams connect Sadat with both economic and peace policies.
Login to save your score, XP, coins and progress.
Akbar's policy of religious tolerance is generally known by which term?
A. सुलह-ए-कुलSulh-i-Kul
सुलह-ए-कुल का अर्थ सबके साथ शांति है। परीक्षा में इसे अकबर की उदार नीति से जोड़ें। / Sulh-i-Kul means peace with all. Exam tip: connect it with Akbar's liberal policy.
Login to save your score, XP, coins and progress.
The AP of multiples of (12) greater than (400) is \(408,420,432,\ldots\). What is its (18)th term?
A. (612)
यहां (a=408) और (d=12) है इसलिए \(a_{18}=408+17\times12=612\)। सीमा के बाद पहला सही गुणज चुनें। / Here (a=408) and (d=12) so \(a_{18}=408+17\times12=612\). Choose the first correct multiple after the limit.
Login to save your score, XP, coins and progress.
If \(a_n=10-3n\), which term will be (-44)?
C. (18)वां(18)th
(-44=10-3n) से (3n=54) इसलिए (n=18)। प्रत्यक्ष सूत्र में समीकरण को सीधे हल करें। / From (-44=10-3n), (3n=54) so (n=18). Solve the direct formula equation directly.
Login to save your score, XP, coins and progress.
In an AP \(a_{10}=58\) and \(a_{22}=130\). What is the first term?
B. (4)
\(d=\frac{130-58}{22-10}=6\) और \(a_1=58-9\times6=4\)। पहले (d) निकालकर पीछे चलें। / \(d=\frac{130-58}{22-10}=6\) and \(a_1=58-9\times6=4\). Find (d) first and move backward.
Login to save your score, XP, coins and progress.
If \(a_n=4n+11\), what are the first term and common difference?
A. (a=15,d=4)
(n=1) रखने पर \(a_1=15\) और (n) का गुणांक (4) ही (d) है। प्रत्यक्ष सूत्र से दोनों मान तुरंत मिलते हैं। / Putting (n=1), \(a_1=15\) and the coefficient of (n) is (d=4). The direct formula gives both values quickly.
Login to save your score, XP, coins and progress.
In the AP \(13,21,29,\ldots\), what is the greatest term less than (250)?
C. (245)
पद (13+8(n-1)) के रूप में हैं और (250) से कम सबसे बड़ा ऐसा पद (245) है। सीमा वाले प्रश्न में अगले पद से भी जांच करें। / The terms are of the form (13+8(n-1)) and the greatest such term less than (250) is (245). In limit questions check the next term too.
Login to save your score, XP, coins and progress.
If the first term of an AP is (22) and \(a_{32}=177\), what is the common difference?
C. (5)
(177=22+31d) से (155=31d) और (d=5)। (32)वें पद में (31d) जुड़ता है। / From (177=22+31d), (155=31d) and (d=5). In the (32)nd term (31d) is added.
Login to save your score, XP, coins and progress.
What will be the (20)th term of the AP \(-45,-36,-27,\ldots\)?
C. (126)
(a=-45) और (d=9) हैं इसलिए \(a_{20}=-45+19\times9=126\)। ऋणात्मक शुरूआत वाली बढ़ती AP में अंतिम जोड़ सावधानी से करें। / (a=-45) and (d=9) so \(a_{20}=-45+19\times9=126\). In an increasing AP starting negative add carefully at the end.
Login to save your score, XP, coins and progress.
What is the (28)th term of the AP \(\frac{2}{3},\frac{4}{3},2,\ldots\)?
B. \(\frac{56}{3}\)
यहां \(a=\frac{2}{3}\) और \(d=\frac{2}{3}\) है इसलिए \(a_{28}=\frac{2}{3}+27\cdot\frac{2}{3}=\frac{56}{3}\)। भिन्नों में गुणन को पहले सरल करें। / Here \(a=\frac{2}{3}\) and \(d=\frac{2}{3}\) so \(a_{28}=\frac{2}{3}+27\cdot\frac{2}{3}=\frac{56}{3}\). Simplify multiplication first in fractions.
Login to save your score, XP, coins and progress.
Find the (16)th term of the AP \(2.4,4.0,5.6,\ldots\).
C. (26.4)
यहां (a=2.4) और (d=1.6) है इसलिए \(a_{16}=2.4+15\times1.6=26.4\)। दशमलव गुणा में स्थान मूल्य ध्यान रखें। / Here (a=2.4) and (d=1.6) so \(a_{16}=2.4+15\times1.6=26.4\). Keep place value in mind while multiplying decimals.
Login to save your score, XP, coins and progress.
The first term of an AP is (31) and \(a_{19}=139\). What is the common difference?
C. (6)
(139=31+18d) से (108=18d) इसलिए (d=6)। (19)वें पद के लिए (18d) जुड़ता है। / From (139=31+18d), (108=18d) so (d=6). For the (19)th term (18d) is added.
Login to save your score, XP, coins and progress.
What will be the (13)th term of the AP \(120,109,98,\ldots\)?
C. (-12)
(d=-11) है इसलिए (a_{13}=120+12(-11)=-12)। बड़े ऋणात्मक अंतर में गुणा पहले करें। / (d=-11) so (a_{13}=120+12(-11)=-12). With a large negative difference multiply first.
Login to save your score, XP, coins and progress.
What will be the (21)st term of the AP \(-28,-20,-12,\ldots\)?
D. (132)
यहां (a=-28) और (d=8) है इसलिए \(a_{21}=-28+20\times8=132\)। ऋणात्मक पहले पद को जोड़ते समय सावधानी रखें। / Here (a=-28) and (d=8) so \(a_{21}=-28+20\times8=132\). Be careful while adding a negative first term.
Login to save your score, XP, coins and progress.
Find the (18)th term of the AP \(84,78,72,\ldots\).
B. (-18)
यहां (d=-6) है इसलिए (a_{18}=84+17(-6)=-18)। घटती AP में सार्व अंतर को ऋणात्मक लें। / Here (d=-6) so (a_{18}=84+17(-6)=-18). In a decreasing AP take the common difference as negative.
Login to save your score, XP, coins and progress.
What is the (23)rd term of the AP \(6,14,22,\ldots\)?
A. (182)
यहां (a=6) और (d=8) है इसलिए \(a_{23}=6+22\times8=182\)। परीक्षा में (n) की जगह (n-1) लगाना याद रखें। / Here (a=6) and (d=8) so \(a_{23}=6+22\times8=182\). Remember to use (n-1) instead of (n) in exams.
Login to save your score, XP, coins and progress.
The AP of multiples of (8) greater than (300) is \(304,312,320,\ldots\). What is its (25)th term?
A. (496)
यहां (a=304) और (d=8) है इसलिए \(a_{25}=304+24\times8=496\)। सीमा के बाद पहला सही गुणज चुनें। / Here (a=304) and (d=8) so \(a_{25}=304+24\times8=496\). Choose the first correct multiple after the limit.
Login to save your score, XP, coins and progress.
If \(a_n=7-2n\), which term will be (-35)?
A. (21)वां(21)th
(-35=7-2n) से (2n=42) इसलिए (n=21)। प्रत्यक्ष सूत्र में समीकरण सीधा हल करें। / From (-35=7-2n), (2n=42) so (n=21). Solve the direct formula equation directly.
Login to save your score, XP, coins and progress.
In an AP, \(a_{12}=54\) and \(a_{20}=94\). What is the first term?
A. (-1)
\(d=\frac{94-54}{8}=5\) और \(a_1=54-11\times5=-1\)। पहले (d) निकालकर पीछे जाएं। / \(d=\frac{94-54}{8}=5\) and \(a_1=54-11\times5=-1\). Find (d) first and move backward.
Login to save your score, XP, coins and progress.
If \(a_n=3n-2\), what are the first term and common difference?
D. (a=1,d=3)
(n=1) रखने पर \(a_1=1\) और (n) का गुणांक (3) ही (d) है। प्रत्यक्ष सूत्र से दोनों मान तुरंत मिलते हैं। / Putting (n=1), \(a_1=1\) and the coefficient of (n) is (d=3). The direct formula gives both values quickly.
Login to save your score, XP, coins and progress.
Use Google login or mobile OTP. Admin can block users and control login providers.