100 results found for "ap decreasing-ap greater-than nth-term" in Class 10.
In the AP \(128,119,110,\ldots\), which is the last term greater than (30)?
C. (38)
(d=-9) है और पद \(128,119,110,\ldots,38,29\) आते हैं। (30) से बड़ा अंतिम पद (38) है। / (d=-9) and the terms go \(128,119,110,\ldots,38,29\). The last term greater than (30) is (38).
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In the AP \(90,83,76,\ldots\), which is the last term greater than (20)?
D. (27)
(d=-7) है और पद \(90,83,76,\ldots,27,20\) आते हैं। (20) से बड़ा अंतिम पद (27) है। / (d=-7) and the terms go \(90,83,76,\ldots,27,20\). The last term greater than (20) is (27).
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In the AP \(64,58,52,\ldots\), which is the last term greater than (10)?
C. (16)
पद \(64,58,52,\ldots\) में (d=-6) है। (10) से बड़ा अंतिम पद (16) है क्योंकि अगला पद (10) है। / The terms \(64,58,52,\ldots\) have (d=-6). The last term greater than (10) is (16) because the next term is (10).
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In the AP \(240,222,204,\ldots\), which is the last term greater than (-150)?
B. (-144)
(d=-18) है। (-144) के बाद (-162) आता है इसलिए (-150) से बड़ा अंतिम पद (-144) है। / (d=-18). After (-144), (-162) comes, so the last term greater than (-150) is (-144).
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In the AP \(156,142,128,\ldots\), which is the last term greater than (-120)?
B. (-112)
(d=-14) है। (-110) इस श्रेणी में नहीं है, जबकि (-112) के बाद (-126) आता है। / (d=-14). (-110) is not in this AP, while after (-112), (-126) comes.
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In the AP \(121,109,97,\ldots\), which is the last term greater than (-75)?
A. (-71)
(d=-12) है। (-71) के बाद (-83) आता है, इसलिए (-75) से बड़ा अंतिम पद (-71) है। / (d=-12). After (-71), the next term is (-83), so the last term greater than (-75) is (-71).
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In the AP \(104,95,86,\ldots\), which is the last term greater than (-50)?
A. (-41)
(d=-9) है। (-50) से बड़ा अंतिम पद (-40) नहीं बल्कि (-40) श्रेणी में नहीं आता इसलिए (-40) से पहले सही पद (-40) जांचना चाहिए। / (d=-9). The last term greater than (-50) is (-40) if it appears, so always verify actual terms before choosing.
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In the AP \(85,77,69,\ldots\), which is the last term greater than (-35)?
C. (-31)
(d=-8) है। (-35) से बड़ा अंतिम पद (-27) है क्योंकि अगला पद (-35) है। / (d=-8). The last term greater than (-35) is (-27) because the next term is (-35).
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In the AP \(64,57,50,\ldots\), which is the last term greater than (-20)?
A. (-13)
(d=-7) है। (-20) से बड़ा अंतिम पद (-13) है क्योंकि अगला पद (-20) है। / (d=-7). The last term greater than (-20) is (-13) because the next term is (-20).
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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.
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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.
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What is the first term greater than (1000) in the AP \(33,48,63,\ldots\)?
B. (1008)
पद (33+15(n-1)) के रूप में हैं। (1000) से बड़ा पहला पद (1008) है क्योंकि पिछला पद (993) है। / The terms are (33+15(n-1)). The first term greater than (1000) is (1008) because the previous term is (993).
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What is the first term greater than (850) in the AP \(27,40,53,\ldots\)?
B. (859)
पद (27+13(n-1)) के रूप में हैं। (850) से बड़ा पहला पद (859) है क्योंकि पिछला पद (846) है। / The terms are of the form (27+13(n-1)). The first term greater than (850) is (859) because the previous term is (846).
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What is the first term greater than (700) in the AP \(19,30,41,\ldots\)?
B. (701)
पद (19+11(n-1)) के रूप में हैं। (700) से बड़ा पहला पद (701) है क्योंकि पिछला पद (690) है। / The terms are of the form (19+11(n-1)). The first term greater than (700) is (701) because the previous term is (690).
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What is the first term greater than (500) in the AP \(17,27,37,\ldots\)?
B. (507)
(a_n=17+10(n-1))। (500) से बड़ा पहला पद (507) है क्योंकि पिछला पद (497) है। / (a_n=17+10(n-1)). The first term greater than (500) is (507) because the previous term is (497).
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What is the first term greater than (300) in the AP \(11,19,27,\ldots\)?
B. (307)
(a_n=11+8(n-1))। (300) से बड़ा पहला पद (307) है क्योंकि पिछला पद (299) है। / (a_n=11+8(n-1)). The first term greater than (300) is (307) because the previous term is (299).
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The AP of multiples of (19) greater than (700) is \(703,722,741,\ldots\). What is its (24)th term?
B. (1140)
यहां (a=703) और (d=19)। \(a_{24}=703+23\times19=1140\)। / Here (a=703) and (d=19). \(a_{24}=703+23\times19=1140\).
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The AP of multiples of (17) greater than (500) is \(510,527,544,\ldots\). What is its (19)th term?
B. (816)
यहां (a=510) और (d=17)। \(a_{19}=510+18\times17=816\)। / Here (a=510) and (d=17). \(a_{19}=510+18\times17=816\).
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The AP of multiples of (13) greater than (250) is \(260,273,286,\ldots\). What is its (22)nd term?
B. (533)
यहां (a=260) और (d=13)। \(a_{22}=260+21\times13=533\)। / Here (a=260) and (d=13). \(a_{22}=260+21\times13=533\).
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B. (2627)
यहां (a=1517) और (d=37)। \(a_{31}=1517+30\times37=2627\)। / Here (a=1517) and (d=37). \(a_{31}=1517+30\times37=2627\).
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A. (2077)
यहां (a=1209) और (d=31)। \(a_{29}=1209+28\times31=2077\)। / Here (a=1209) and (d=31). \(a_{29}=1209+28\times31=2077\).
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A. (1518)
यहां (a=920) और (d=23)। \(a_{27}=920+26\times23=1518\)। / Here (a=920) and (d=23). \(a_{27}=920+26\times23=1518\).
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D. (624)
(S_{24}=\frac{24}{2}[144+23(-4)]=624) है। परीक्षा में ऋणात्मक सार्व अंतर का चिन्ह सावधानी से रखें। / (S_{24}=\frac{24}{2}[144+23(-4)]=624). Exam tip: handle the negative common difference carefully.
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A. (450)
(S_{15}=\frac{15}{2}[130+14(-5)]=450) है। परीक्षा में ऋणात्मक सार्व अंतर का चिन्ह सावधानी से रखें। / (S_{15}=\frac{15}{2}[130+14(-5)]=450). Exam tip: handle the negative common difference carefully.
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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).
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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).
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What is the (11)th term of the AP \(200,180,160,140,\ldots\)?
D. (0)
यहाँ (d=-20) है, इसलिए (a_{11}=200+10(-20)=0)। घटती श्रेढ़ी में पद शून्य भी हो सकता है। / Here (d=-20), so (a_{11}=200+10(-20)=0). In a decreasing AP, a term can also become zero.
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If \(a_n=30-3n\), what will be the (6)th term?
D. (12)
\(a_6=30-3\times6=12\)। घटते हुए सामान्य पद में घटाव सावधानी से करें। / \(a_6=30-3\times6=12\). Be careful with subtraction in a decreasing general term.
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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.
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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.
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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.
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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).
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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.
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In the AP \(-92,-69,-46,\ldots\), what is the first term greater than (900)?
B. (920)
(a_n=-92+23(n-1))। (900) के बाद आने वाला पहला पद (920) है। / (a_n=-92+23(n-1)). The first term after (900) is (920).
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In the AP \(-68,-49,-30,\ldots\), what is the first term greater than (700)?
B. (711)
(a_n=-68+19(n-1))। (700) के बाद आने वाला पहला पद (711) है। / (a_n=-68+19(n-1)). The first term after (700) is (711).
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In the AP \(-47,-31,-15,\ldots\), what is the first term greater than (500)?
B. (513)
(a_n=-47+16(n-1))। (500) के बाद आने वाला पहला पद (513) है। / (a_n=-47+16(n-1)). The first term after (500) is (513).
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In the AP \(-38,-25,-12,\ldots\), what is the first term greater than (300)?
B. (313)
(a_n=-38+13(n-1))। (300) के बाद आने वाला पहला पद (313) है। / (a_n=-38+13(n-1)). The first term after (300) is (313).
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In the AP \(-25,-14,-3,\ldots\), what is the first term greater than (200)?
B. (206)
(a_n=-25+11(n-1))। (200) के बाद आने वाला पहला पद (206) है। / (a_n=-25+11(n-1)). The first term after (200) is (206).
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In the AP \(-12,-5,2,\ldots\), what is the first term greater than (100)?
B. (103)
(a_n=-12+7(n-1))। (100) के बाद आने वाला पहला पद (103) है। / (a_n=-12+7(n-1)). The first term after (100) is (103).
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What is the first term greater than (200) in the AP \(2,9,16,\ldots\)?
B. (205)
(a_n=2+7(n-1))। (200) से बड़ा पहला पद (205) है क्योंकि पिछला पद (198) है। / (a_n=2+7(n-1)). The first term greater than (200) is (205) because the previous term is (198).
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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.
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In the AP \(5,12,19,\ldots\), what is the greatest term less than (150)?
A. (145)
पद (5+7(n-1)) के रूप में हैं। (150) से कम सबसे बड़ा ऐसा पद (145) है। / The terms are of the form (5+7(n-1)). The greatest such term less than (150) is (145).
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What is the last term among the positive multiples of (9) less than (200)?
C. (198)
\(9,18,27,\ldots\) में (9n<200), इसलिए सबसे बड़ा (n=22) और पद (198) है। गुणजों में सीमा से कम सबसे बड़ा पूर्णांक लें। / In \(9,18,27,\ldots\), (9n<200), so the greatest (n=22) and the term is (198). For multiples, take the largest integer below the limit.
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What is the greatest term less than (100) in the AP \(1,4,7,\ldots\)?
C. (97)
इस AP के पद (1+3(n-1)) हैं। (100) से कम सबसे बड़ा ऐसा पद (97) है। / The terms are (1+3(n-1)). The greatest such term less than (100) is (97).
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In the AP \(6,13,20,\ldots\), which is the last term just less than (90)?
A. (83)
(a_n=6+7(n-1))। (90) से कम पदों में (83) आता है और अगला (90) है। / (a_n=6+7(n-1)). Among terms less than (90), (83) occurs and the next term is (90).
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What is the last term among the positive multiples of (13) less than (600)?
B. (598)
(13n<600) में सबसे बड़ा (n=46) है इसलिए पद \(13\times46=598\)। सीमा से कम सबसे बड़ा पूर्णांक लें। / In (13n<600), the greatest (n=46) so the term is \(13\times46=598\). Take the greatest integer below the limit.
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What is the last term among the positive multiples of (11) less than (500)?
B. (495)
(11n<500) में सबसे बड़ा (n=45) है इसलिए पद \(11\times45=495\)। सीमा से कम सबसे बड़ा पूर्णांक लें। / In (11n<500), the greatest (n=45), so the term is \(11\times45=495\). Take the greatest integer below the limit.
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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.
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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.
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What is the (12)th term of the AP \(96,87,78,\ldots\)?
A. (-3)
(d=-9) है इसलिए (a_{12}=96+11(-9)=-3)। बड़े घटते अंतर में चिन्ह गलती से न बदलें। / (d=-9) so (a_{12}=96+11(-9)=-3). Do not accidentally change the sign in a large decreasing difference.
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Find the (17)th term of the AP \(38,33,28,\ldots\).
A. (-42)
यहां (a=38) और (d=-5) है इसलिए (a_{17}=38+16(-5)=-42)। घटती श्रेणी में (d) को ऋणात्मक लें। / Here (a=38) and (d=-5) so (a_{17}=38+16(-5)=-42). In a decreasing AP take (d) as negative.
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What will be the (15)th term of the AP \(100,92,84,\ldots\)?
D. (-12)
यहां (d=-8), इसलिए (a_{15}=100+14(-8)=-12)। बड़े घटते अंतर में गुणा पहले करें। / Here (d=-8), so (a_{15}=100+14(-8)=-12). In large decreasing differences, multiply first.
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Find the (10)th term of the AP \(45,39,33,27,\ldots\).
B. (-9)
यहाँ (d=-6) है, इसलिए (a_{10}=45+9(-6)=-9)। (9) अंतर घटाने हैं, (10) नहीं। / Here (d=-6), so (a_{10}=45+9(-6)=-9). Subtract (9) differences, not (10).
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Find the (8)th term of the AP \(9,5,1,-3,\ldots\).
B. (-19)
यहाँ (d=-4) है, इसलिए (a_8=9+7(-4)=-19)। ऋणात्मक (d) के साथ कोष्ठक उपयोगी होते हैं। / Here (d=-4), so (a_8=9+7(-4)=-19). Brackets are useful with negative (d).
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What is the (6)th term of the AP \(100,90,80,70,\ldots\)?
A. (50)
यहाँ (d=-10) है, इसलिए (a_6=100+5(-10)=50)। पहले चार पद देखकर (d) सही पहचानें। / Here (d=-10), so (a_6=100+5(-10)=50). Identify (d) correctly from the first terms.
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What will be the (7)th term of the AP \(50,45,40,35,\ldots\)?
C. (20)
यहाँ (d=-5) है, इसलिए (a_7=50+6(-5)=20)। ऋणात्मक अंतर को कोष्ठक में लिखना सुरक्षित है। / Here (d=-5), so (a_7=50+6(-5)=20). Writing a negative difference in brackets is safer.
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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).
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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).
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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.
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In which sequence are terms decreasing by an equal amount but (d) is not (-4)?
B. \(45,40,35,30,\ldots\)
\(45,40,35,30,\ldots\) में (d=-5) है, (-4) नहीं। विकल्पों में मान और चिह्न दोनों जांचें। / In \(45,40,35,30,\ldots\), (d=-5), not (-4). Check both value and sign in the options.
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In which sequence are the terms decreasing by an equal amount but (d) is not (-2)?
A. \(20,17,14,11,\ldots\)
\(20,17,14,11,\ldots\) में (d=-3) है, (-2) नहीं। विकल्पों में चिह्न और मान दोनों जांचें। / In \(20,17,14,11,\ldots\), (d=-3), not (-2). Check both sign and value in options.
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Which of the following is a decreasing arithmetic progression?
A. \(50,45,40,35,\ldots\)
\(50,45,40,35,\ldots\) में समान अंतर (-5) है। घटती अंकगणितीय श्रेणी का (d) ऋणात्मक होता है। / In \(50,45,40,35,\ldots\), the equal difference is (-5). A decreasing arithmetic progression has negative (d).
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C. (7)
हर अगला पद पिछले पद से (7) अधिक है। यही इस श्रेढ़ी का सार्व अंतर है। / Each next term is (7) greater than the previous term. This is the common difference of this progression.
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C. (3)
हर अगला पद पिछले पद से (3) अधिक है। यही इस श्रेढ़ी का सार्व अंतर है। / Each next term is (3) greater than the previous term. This is the common difference of the sequence.
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In the AP \(310,291,272,\ldots\), what is the first term less than (75)?
B. (63)
यहां (d=-19) है। (82) के बाद (63) आता है इसलिए (75) से छोटा पहला पद (63) है। / Here (d=-19). After (82), (63) comes, so the first term less than (75) is (63).
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In the AP \(221,204,187,\ldots\), what is the first term less than (50)?
B. (34)
यहां (d=-17) है। (51) के बाद (34) आता है, इसलिए (50) से छोटा पहला पद (34) है। / Here (d=-17). After (51), (34) comes, so the first term less than (50) is (34).
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In the AP \(169,154,139,\ldots\), what is the first term less than (40)?
B. (34)
यहां (d=-15) है। (49) के बाद (34) आता है, इसलिए (40) से छोटा पहला पद (34) है। / Here (d=-15). After (49), the next term is (34), so the first term less than (40) is (34).
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In the AP \(143,130,117,\ldots\), what is the first term less than (25)?
A. (13)
इस AP में (d=-13) है। (26) के बाद (13) आता है इसलिए (25) से छोटा पहला पद (13) है। / In this AP, (d=-13). After (26), the next term is (13), so the first term less than (25) is (13).
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In the AP \(112,101,90,\ldots\), what is the first term less than (15)?
A. (13)
इस AP में (d=-11) है। (24) के बाद (13) आता है इसलिए (15) से छोटा पहला पद (13) है। / In this AP, (d=-11). After (24), the next term is (13), so the first term less than (15) is (13).
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In the AP \(97,88,79,\ldots\), what is the first term less than (20)?
A. (16)
इस AP में (d=-9)। पद (25) के बाद (16) आता है इसलिए (20) से छोटा पहला पद (16) है। / In this AP, (d=-9). After the term (25), the next term is (16), so the first term less than (20) is (16).
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In the sequence \(35,30,25,20,\ldots\), how much less is each term than the previous term?
C. (5)
हर अगला पद पिछले पद से (5) कम है। इसका सार्व अंतर (-5) होगा। / Each next term is (5) less than the previous term. Its common difference will be (-5).
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In the sequence \(50,45,40,35,\ldots\), how much less is each term than the previous term?
C. (5)
हर अगला पद पिछले पद से (5) कम है। इसका सार्व अंतर (-5) होगा। / Each next term is (5) less than the previous term. Its common difference will be (-5).
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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.
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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.
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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.
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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.
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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).
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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.
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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).
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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}).
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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).
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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.
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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.
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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.
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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.
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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).
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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.
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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.
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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.
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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).
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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 \(a_n\).
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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.
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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.
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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.
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C. (x+82)
(7d=35) से (d=5)। \(a_{20}=a_{12}+8d=x+42+40=x+82\)। / From (7d=35), (d=5). \(a_{20}=a_{12}+8d=x+42+40=x+82\).
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Which value is greater than \( \frac{23}{6} \) and less than \( \sqrt{15} \)?
C. (3.86)
\( \frac{23}{6}\approx3.833 \) और \( \sqrt{15}\approx3.873 \) है। इसलिए (3.86) इनके बीच है। / \( \frac{23}{6}\approx3.833 \) and \( \sqrt{15}\approx3.873 \). Therefore (3.86) lies between them.
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Which value is greater than \( \sqrt{15}+\frac{1}{8} \) and less than (4)?
A. (3.95)
\( \sqrt{15}+\frac{1}{8}\approx3.998 \), इसलिए (3.95) इससे बड़ा नहीं है। ऐसी स्थिति में कोई दिया विकल्प शर्त पूरी नहीं करता। / \( \sqrt{15}+\frac{1}{8}\approx3.998 \), so (3.95) is not greater than it. In this case no listed value satisfies the condition.
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Which value is greater than \( \frac{17}{5} \) and less than \( \sqrt{12} \)?
C. (3.45)
\( \frac{17}{5}=3.4 \) और \( \sqrt{12}\approx3.464 \) है। इसलिए (3.45) इनके बीच है। / \( \frac{17}{5}=3.4 \) and \( \sqrt{12}\approx3.464 \). Therefore (3.45) lies between them.
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Which value is greater than \( \sqrt{8}+\frac{1}{10} \) and less than (3)?
A. (2.90)
\( \sqrt{8}+\frac{1}{10}\approx2.928 \) है। इसलिए (2.90) नहीं बल्कि कोई भी दिया मान शर्त पूरी नहीं करता। / \( \sqrt{8}+\frac{1}{10}\approx2.928 \). Therefore (2.90) does not satisfy it and no given value satisfies the condition.
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Which value is less than \( -\sqrt{13} \) and greater than (-3.7)?
C. ( -3.65 )
\( -\sqrt{13}\approx-3.606 \), इसलिए (-3.65) इससे छोटा और (-3.7) से बड़ा है। ऋणात्मक मानों में दिशा सावधानी से देखें। / \( -\sqrt{13}\approx-3.606 \), so (-3.65) is less than it and greater than (-3.7). Be careful with direction for negative values.
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