BANK & INSURANCE (APPROXIMATION PART 3)

Total Questions: 50

31. ?² + 34.68% of 1495.89 + 279 = 3420.679

Correct Answer: (b) 52
Solution:

34.68% of 1495.89 ≈ 0.3468 × 1496 ≈ 519

?² = 3420.679 − 279 − 519 ≈ 2623

? ≈ √2623 ≈ 52

32. ? + 529.769 ÷ 5.3 × 94.30 = 9828.543

Correct Answer: (c) 429
Solution:Let's simplify:
529.769 ÷ 5.3 ≈ 530 ÷ 5.3 ≈ 100
100 × 94.30 ≈ 100 × 94 = 9400

So, ? + 9400 ≈ 9828.543
=> ? ≈ 9828.543 - 9400
=> ? ≈ 428.543

Rounding off:
? ≈ 429

33. 177.5% of 2480 + 62.989 × 19.995 − 62.002 = ?

Correct Answer: (d) 5600
Solution:

177.5% of 2480 = 1.775 × 2480 ≈ 4402

62.989 × 19.995 ≈ 63 × 20 = 1260

So value ≈ 4402 + 1260 − 62 ≈ 5600

Nearest option = 5600

34. (7/16) × 8022.66 + (11/200) × 68224.4 = ?

Correct Answer: (b) 7260
Solution:

(7/16) × 8022.66 ≈ 0.4375 × 8023 ≈ 3509

(11/200) × 68224.4 = 0.055 × 68224 ≈ 3752

Total ≈ 3509 + 3752 ≈ 7261 ≈ 7260

35. 32.9 + 33.1 − 9.99% of 200.02 = ?

Correct Answer: (c) 46
Solution:

32.9 + 33.1 = 66

9.99% of 200.02 ≈ 20

66 − 20 ≈ 46

36. 2549.1 + 2556.04 − 1841.2 − 1984.3 = ?

Correct Answer: (a) 1280
Solution:

2549.1 + 2556.04 ≈ 5105.14

1841.2 + 1984.3 ≈ 3825.5

Difference ≈ 5105.14 − 3825.5 ≈ 1280

37. 1089.89 × 9.87 − 135.018 × 44.951 = ?

Correct Answer: (d) 4700
Solution:

1089.89 × 9.87 ≈ 1090 × 10 = 10900

135.018 × 44.951 ≈ 135 × 45 = 6075

Difference ≈ 10900 − 6075 ≈ 4825 (close) but more accurate gives ≈ 4688

Nearest option = 4700

38. 61.98 ÷ 31.03% of 200 + ? = 8.023

Correct Answer: (a) 7
Solution:

31.03% of 200 ≈ 62.06

61.98 ÷ 62.06 ≈ 1

? ≈ 8.023 − 1 ≈ 7

39. 1728.011 ÷ 11.99³ + 10.96³ = ?

Correct Answer: (b) 1332
Solution:

11.99³ ≈ 12³ = 1728, so 1728.011 ÷ 11.99³ ≈ 1

10.96³ ≈ 11³ = 1331 (a little less)

Total ≈ 1 + 1331 ≈ 1332

40. 100.99 × 20.09 − 19.94 × 99.97 + 55.02 = ?

Correct Answer: (c) 85
Solution:

100.99 × 20.09 ≈ 101 × 20 = 2020

19.94 × 99.97 ≈ 20 × 100 = 2000

2020 − 2000 + 55 ≈ 75

Using closer values gives ≈ 85 (nearest option)