BANK & INSURANCE (MISSING NUMBER SERIES PART 3)

Total Questions: 50

21. 65, 75, ?, 118, 155, 205

Correct Answer: (d) 92
Solution:

Differences: +10, +17, +26, +37, +50 (increments +7, +9, +11, +13). So ? = 75 + 17 = 92.

22. 6.25, 7.29, 8.41, ?, 10.89, 12.25

Correct Answer: (d) 9.62
Solution:

These are squares: 2.5², 2.7², 2.9², 3.1², 3.3², 3.5². So missing = 3.1² = 9.61 ≈ 9.62.

23. 1749600, ?, 32400, 2700, 180, 10

Correct Answer: (a) 291600
Solution:

Divide by 6, 9, 12, 15, 18. So ? = 1749600 ÷ 6 = 291600.

24. 28, 56, 168, ?, 5880, 64680

Correct Answer: (b) 840
Solution:

Multiply by primes: ×2, ×3, ×5, ×7, ×11. So ? = 168 × 5 = 840.

25. 4, 9, 19, 39, 79, ?, 319

Correct Answer: (b) 159
Solution:4 × 2 + 1 = 9
9 × 2 + 1 = 19
19 × 2 + 1 = 39
39 × 2 + 1 = 79
79 × 2 + 1 = 159
159 × 2 + 1 = 319 ✔

26. 24, 35, 57, 90, 134, ?

Correct Answer: (c) 189
Solution:

Differences: +11, +22, +33, +44, +55. So ? = 134 + 55 = 189.

27. 273, 272, 264, 237, 173, ?

Correct Answer: (d) 48
Solution:

Subtract cubes: −1³, −2³, −3³, −4³, −5³. So ? = 173 − 125 = 48.

28. 32, 32, 48, 96, ?, 720

Correct Answer: (a) 240
Solution:

Multipliers: ×1, ×1.5, ×2, ×2.5, ×3. So ? = 96 × 2.5 = 240.

29. 42, 47, 37, 52, ?, 57

Correct Answer: (b) 32
Solution:

Pattern: +5, −10, +15, −20, +25. So ? = 52 − 20 = 32.

30. 22, 20, 37, ?, 423, 2109

Correct Answer: (c) 107
Solution:

Pattern: ×1−2, ×2−3, ×3−4, ×4−5, ×5−6. Missing = 37×3 − 4 = 107.