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2/21/2016 Aptitude Questions (Number Series) for IBPS Clerk Mains
http://www.ibpsguide.com/2015/12/aptitudequestionsnumberseriesforibpsclerkmainsset18.html 1/3
Aptitude Questions (Number Series) for IBPS Clerk Mains
Dear Readers, Important Practice Aptitude Questions for Upcoming IBPS Clerk V Mains Exam was givenhere with Explanations. Aspirants those who are preparing for the examination can use this.Directions (Q. 110): In each of the following questions a number series is given with one wrongnumber. Find that wrong number.1). 2 3 6 15 45 156.5 630a) 3b) 45c) 15d) 6e) 156.52). 36 20 12 8 6 5.5 4.5a) 5.5b) 6c) 12d) 20e) 83). 1 3 9 31 128 651 3313a) 651b) 128c) 31d) 9e) 34). 2 3 10 40 172 855 5346a) 3b) 855c) 40d) 172
2/21/2016 Aptitude Questions (Number Series) for IBPS Clerk Mains
http://www.ibpsguide.com/2015/12/aptitudequestionsnumberseriesforibpsclerkmainsset18.html 2/3
e) 105). 5 8 16 26 50 98 194a) 8b) 26c) 50d) 16e) 986). 10 15 24 35 54 75 100a) 35b) 75c) 24d) 15e) 547). 1 3 4 7 11 18 27 47a) 4b) 11c) 18d) 7e) 278). 3 2 3 6 12 37.5 115.5a) 37.5b) 3c) 6d) 2e) 129). 2 8 32 148 765 4626 32431a) 765b) 148c) 8d) 32e) 462610). 2 3 11 38 102 229 443a) 11b) 229c) 120d) 38e) 3Answers:1). e) 2). a) 3). b) 4). c) 5). d) 6). a) 7). e) 8). e) 9). d) 10). b)
2/21/2016 Aptitude Questions (Number Series) for IBPS Clerk Mains
http://www.ibpsguide.com/2015/12/aptitudequestionsnumberseriesforibpsclerkmainsset18.html 3/3
Explanations:1). The series is × 1.5, × 2, × 2.5, × 3 and so on.Answer: e)2). The series is 16, 8, 4, 2, 1, 0.5, and so on.Answer: a)3). The series is × 1 + 2, × 2 + 3, × 3 + 4, and so on.Answer: b)4). The series is × 1 + 1², × 2 + 2², × 3 + 3² and so on.Answer: c)5). The series is ×2 2Answer: d)6). The series is +5, +9, +13, +17 …. The difference in successive nos. 9 – 5 = 13 – 9 = 17 – 13 = …. =4. Hence, 35 is wrong. It should be 37.Answer: a)7). The sum of first two nos. is the third no. Hence, 27 is wrong. It should be 29.Answer: e)8). The series is × 0.5 + 0.5, × 1 + 1, × 1.5 + 1.5 …. Hence, 12 is wrong. It should be 14.Answer: e)9). The series is × 2 + 2², × 3 + 3², × 4 + 4², × 5 + 5² …. Hence 32 is wrong. It should be 33.Answer: d)10). The series is + 1³, + 2³, + 3³, + 4³ …. Hence, 224 is wrong. It should be 227.Answer: b)
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