BANK & INSURANCE (APPROXIMATION PART 2)

Total Questions: 50

41. (?)² + 8.02³ = 33.93² − 22.01

Correct Answer: (c) 25
Solution:

33.93² ≈ 34² = 1156; 1156 − 22 ≈ 1134

8.02³ ≈ 8³ = 512

(?)² ≈ 1134 − 512 = 622

? ≈ √622 ≈ 25

42. 16.05² − 256.02^(1/4) + 2196.95^(1/3) = ?

Correct Answer: (b) 265
Solution:

16.05² ≈ 16² = 256

256.02^(1/4) ≈ 4 (since 4⁴ = 256)

2196.95^(1/3) ≈ 13 (since 13³ = 2197)

Result ≈ 256 − 4 + 13 = 265

43. (1633.33 + 1999.99 − 999.11) ÷ 9.09 × 3 − 166.06 = ?

Correct Answer: (d) 712
Solution:

Sum ≈ 1633 + 2000 − 999 ≈ 2634

2634 ÷ 9.09 ≈ 290

290 × 3 ≈ 870

870 − 166 ≈ 704 ≈ 712

44. (167.98% of 1474.98) ÷ 20.99 = ? − 289.72

Correct Answer: (c) 408
Solution:

167.98% of 1474.98 ≈ 1.68 × 1475 ≈ 2478

2478 ÷ 20.99 ≈ 118

118 = ? − 289.72 ⇒ ? ≈ 118 + 290 ≈ 408

45. 34.99% of 359.78 − 12.5% of 671.848 = ?% of 139.928

Correct Answer: (a) 30
Solution:

34.99% of 359.78 ≈ 0.35×360 ≈ 126

12.5% of 671.848 ≈ 0.125×672 ≈ 84

Difference ≈ 42

?% ≈ (42 ÷ 139.928)×100 ≈ 30%

46. (13.19 × 14.85 − 15.27) ÷ 4.97 = ?²

Correct Answer: (c) 6
Solution:

13.19×14.85 ≈ 13.2×14.9 ≈ 196.7

196.7 − 15.27 ≈ 181.4

181.4 ÷ 4.97 ≈ 36.5

?² ≈ 36 ⇒ ? ≈ 6

47. 175% of 280.06 − ? = 404.02 − 1/8 of 104.08

Correct Answer: (b) 99
Solution:

175% of 280.06 ≈ 1.75×280 ≈ 490

1/8 of 104.08 ≈ 13

RHS ≈ 404 − 13 = 391

? ≈ 490 − 391 = 99

48. 43.05% of 2400.01 + 18.02% of 2100.09 = ?² + 449.99

Correct Answer: (a) 31
Solution:

43.05% of 2400 ≈ 0.4305×2400 ≈ 1033

18.02% of 2100 ≈ 0.1802×2100 ≈ 378

Sum ≈ 1411

?² ≈ 1411 − 450 = 961 ⇒ ? ≈ 31

49. 420.12 ÷ ? = 361.11^(1/2) − 22.01 × 6.99 + 141.99

Correct Answer: (c) 60
Solution:

√361.11 ≈ 19

22.01×6.99 ≈ 22×7 ≈ 154

19 − 154 + 142 ≈ 7

420.12 ÷ ? ≈ 7 ⇒ ? ≈ 60

50. ? ÷ 4 + 44.01 + 139.99 = 78.09 + 249.01 + 86.99

Correct Answer: (a) 920
Solution:

RHS ≈ 78.09+249.01+86.99 ≈ 414.09

LHS constants = 44.01+139.99 = 184.00

? ÷ 4 ≈ 414.09 − 184 = 230.09

? ≈ 230.09×4 ≈ 920