Practice Quantitative Aptitude Questions For IBPS 2017 Exams (Number Series)

Practice Quantitative Aptitude Questions For IBPS 2017 Exams (Number Series):

Dear Readers, Important Practice Aptitude Questions for IBPS Exams 2017 was given here with Solutions. Aspirants those who are preparing for the Bank Examination and other Competitive Examination can use this material.

Directions (Q. 1-5): What should come in place of question mark (?) in the following number series

1). 6 13 2653 110 ?

1). The series is +8 -1, +16 -3, +32 -5, +64 -7,
Answer is: E

2). 3 5 16 63 316 ?

2). The series is ×2 -1, ×3 +1, ×4 -1, ×5 +1,
Answer is: D

3). 7 11 25 59 133 ?

3). The series is +4, +14, +34, +74
Answer is: B

4). 5 7 10 20 35 ?

4). The series is +1^2 + 1, +2^2 – 1, +3^2 + 1, +4^2 - 1,
Answer is: A

5). 4 17 75 210 454 ?

5). The series is +4^2 – 3, +8^2 – 6, +12^2 – 9, +16^2 – 12,
Answer is: C

Directions (Q. 6-10): In each of these questions a number series is given. In each series only one number is wrong. Find out the wrong number.

6). 7 16 27 40 46</span>

6). The series is 5 × 1 + 2 = 7, 6 × 2 + 4 = 16, 7 × 3 + 6 = 27, 8 × 4 + 8 = 40, 9 × 5 + 10 = 55.
Hence, there should be 55 in place of 46.
Alternate Method: +9, +11, +13, +15
Answer is: E

7). 729 1331 2497 3375 4913

7). The series is 9^3, 11^3, 13^3, 15^3, 17^3,
Hence, there should be 2197 in place of 2497.
Answer is: D

8). 80 119 166 221 223

8). The series is 9^2 – 1, 11^2 – 2, 13^2 – 3, 15^2 – 4, 17^2 – 5,
Hence, there should be 284 in place of 223.
Answer is: E

9). 8 8.5 11.5 14 17

9). The series is 8 + 1.5 = 9.5, 9.5 + 2 = 11.5, 11.5 + 2.5 = 14, 14 + 3 = 17
Hence, there should be 9.5 in place of 8.5.
Answer is: B

10). 439 778 1456 2812 5624

10). The series is +339, +678, +1356, +2712,
Hence, there should be 5524 in place of 5624.
Answer is: E