BANK & INSURANCE (MISSING NUMBER SERIES PART 1)

Total Questions: 50

1. 16, 34, 70, 124, ?, 286

Correct Answer: (c) 196
Solution:Differences: +18, +36, +54, +72, +90 ⇒ missing = 124 + 72 = 196. 

2. 4, 14, ?, 306, 1844, 12918

Correct Answer: (a) 60
Solution:Pattern: ×3 +2; ×4 +4; ×5 +6; ×6 +8; ×7 +10 ⇒ 14×4+4=60 and 60×5+6=306.

3. 118, 125, 144, 181, 242, ?

Correct Answer: (d) 333
Solution:Differences: 7, 19, 37, 61 (increase by 12,18,24). Next increase +30 ⇒ next diff = 91 ⇒ 242+91=333.

4. ?, 71, 109, 155, 209, 271

Correct Answer: (b) 41
Solution:

Differences: 38, 46, 54, 62 (increase by +8). Previous diff = 30 ⇒ missing = 71−30=41.

5. 395, 420, 450, 485, ?, 570

Correct Answer: (b) 525
Solution:Differences: +25, +30, +35, +40, +45 ⇒ missing = 485+40=525.

6. 8, 21, 70, 359, ?, 27777

Correct Answer: (a) 2524
Solution:Pattern: ×2+5, ×3+7, ×5+9, ×7+11, ×11+13 ⇒ 359×7+11=2524.

7. 1620, 540, 216, 108, ?, 72

Correct Answer: (b) 72
Solution:Let's analyze:

1620 ÷ 3 = 540

540 ÷ 2.5 = 216

216 ÷ 2 = 108

108 ÷ 1.5 = 72

So, the missing term is: 72

The sequence is: 1620, 540, 216, 108, 72, 72

8. 2, 3, 5, 9, ?, 33, 65

Correct Answer: 17
Solution:The pattern is obtained by adding 1, 2, 4, 8, ... (powers of 2) to the previous term.

2 + 1 = 3

3 + 2 = 5

5 + 4 = 9

9 + 8 = 17

17 + 16 = 33

33 + 32 = 65

So, the missing number is: 17

9. 37, 39, 81, 247, ?, 4971

Correct Answer: (a) 993
Solution:Pattern: ×1+2, ×2+3, ×3+4, ×4+5, ×5+6 ⇒ 247×4+5=993.

10. 8, 15, ?, 59, 133, 183

Correct Answer: (c) 33
Solution:Pattern: ×2 with alternating + (2^n−1): 8×2−1=15; 15×2+3=33; 33×2−7=59; 59×2+15=133. Missing = 33.