BANK & INSURANCE (APPROXIMATION PART 2)

Total Questions: 50

31. (?)% of 399.89 + 20.17% of 349.98 = 229.94

Correct Answer: (d) 40
Solution:

20.17% of 349.98 ≈ 0.2017 × 350 ≈ 70.6

So (?)% of 399.89 ≈ 229.94 − 70.6 ≈ 159.3

Percent ≈ (159.3 ÷ 399.89) × 100 ≈ 39.8% ≈ 40%

32. ? ÷ 4.02 + 4.97 × 9.09 = 131.92

Correct Answer: (b) 348
Solution:

4.97 × 9.09 ≈ 45.2

? ÷ 4.02 ≈ 131.92 − 45.2 ≈ 86.7

? ≈ 86.7 × 4.02 ≈ 348.7 ≈ 348

33. √? × (31.96 − 18.05) / 1.98 = 1120.09

Correct Answer: (b) 25600
Solution:

(31.96 − 18.05) = 13.91

13.91 ÷ 1.98 ≈ 7.03

√? ≈ 1120.09 ÷ 7.03 ≈ 159.4

? ≈ (159.4)² ≈ 25420 ≈ 25600

34. ⁴√257 × 27.05 − 5.02² = ?

Correct Answer: (b) 83
Solution:

⁴√257 ≈ 4 (since 4⁴ = 256)

4 × 27.05 ≈ 108.2

5.02² ≈ 25.2

Result ≈ 108.2 − 25.2 = 83

35. 151.04 − 118.95 ÷ 17.01 − ?² = 80.07

Correct Answer: (a) 8
Solution:

118.95 ÷ 17.01 ≈ 7

151.04 − 7 − 80.07 ≈ 63.97

?² ≈ 64 ⇒ ? ≈ 8

36. (2.99/3.99) of (6.99/4.99) of 99.98 = ? − 3/4 of 431.98

Correct Answer: (d) 429
Solution:

(2.99/3.99) ≈ 0.75 and (6.99/4.99) ≈ 1.40

LHS ≈ 0.75 × 1.40 × 100 ≈ 105

3/4 of 431.98 ≈ 324

? ≈ 105 + 324 = 429

37. √(29.98% of 449.98 + 19.96% of 169.95) = ?

Correct Answer: (c) 13
Solution:

29.98% of 449.98 ≈ 0.30 × 450 = 135

19.96% of 169.95 ≈ 0.20 × 170 = 34

Sum ≈ 169

√169 = 13

38. ³√(215.99 × 8.07) + √(16.11 × 24.82) = √(? × 4)

Correct Answer: (d) 256
Solution:

215.99 × 8.07 ≈ 1743 ⇒ ³√1743 ≈ 12

16.11 × 24.82 ≈ 400 ⇒ √400 ≈ 20

Sum ≈ 12 + 20 = 32

So √(?×4) ≈ 32 ⇒ ?×4 ≈ 1024 ⇒ ? ≈ 256

39. 34.95% of 499.99 + 20.24% of 1599 − ? = 59.99

Correct Answer: (d) 435
Solution:

34.95% of 500 ≈ 175

20.24% of 1600 ≈ 324

175 + 324 = 499

? ≈ 499 − 60 = 439 ≈ 435

40. 199.79 × 126.05 ÷ 14.02 + 177.94 − 294.89 = ?

Correct Answer: (a) 1683
Solution:

199.79 ≈ 200 and 126.05 ≈ 126

(200×126) ÷ 14.02 ≈ 25200 ÷ 14 ≈ 1800

1800 + 178 − 295 ≈ 1683