BANK & INSURANCE (APPROXIMATION PART 1)

Total Questions: 50

11. 19.89% of 449.67 + 14.67% of 299.89 − 9.89% of 99.79 = ?

Correct Answer: (c) 125
Solution:

= 0.1989×449.67 + 0.1467×299.89 − 0.0989×99.79

= 123.5640 ≈ 125.

12. 9.99 + 19.99 + 29.99 + 39.99 = ?²

Correct Answer: (b) 10
Solution:

Sum = 99.96

So, ? = √99.96 ≈ 10.

13. 4.99 × 55.01 × 554.64 = ? × 110.85 × 11.15

Correct Answer: (a) 125
Solution:

? = (4.99×55.01×554.64) ÷ (110.85×11.15) = 123.1807 ≈ 125.

14. 9.89 × 4.99 + 2.01 × 49.89 = ?% of 299.69

Correct Answer: (c) 50
Solution:

LHS = 9.89×4.99 + 2.01×49.89 = 149.63

?% = (149.63 ÷ 299.69)×100 = 49.9283 ≈ 50%.

15. 11.98% of 824.99 = 19.98% of ? + 24.98% of 239.99

Correct Answer: (a) 195
Solution:

0.1198×824.99 = 0.1998×? + 0.2498×239.99

98.833802 = 0.1998×? + 59.949502

0.1998×? = 38.884300

? = 194.6161 ≈ 195

16. ? + 765.99 − 526.01 = 25.01 × 23.98

Correct Answer: (d) 360
Solution:

25.01×23.98 = 599.7478

765.99 − 526.01 = 239.98

So, ? = 599.7478 − 239.98 = 359.7598 ≈ 360.

17. 17.99 × 20.98 − 14.98 × 11.99 = ? × 8.98

Correct Answer: (d) 22
Solution:

Numerator = 17.99×20.98 − 14.98×11.99 = 197.2199

? = 197.2199 ÷ 8.98 = 22.0290 ≈ 22.

18. (19.98% of 559.98) ÷ 13.99 = ? − 11.98% of 399.99

Correct Answer: (b) 56
Solution:

(0.1998×559.98) ÷ 13.99 = 7.9988

11.98% of 399.99 = 47.9190

So, ? = 7.9988 + 47.9190 = 55.9162 ≈ 56.

19. √728.99 + √? − √528.98 = ³√1331.01

Correct Answer: (c) 49
Solution:

³√1331.01 ≈ 11.0000

√728.99 ≈ 26.9998, √528.98 ≈ 22.9996

√? = 11.0000 − 26.9998 + 22.9996 ≈ 6.9998

So, ? ≈ (6.9998)² ≈ 49.

20. 33.33% of 179.99 = 29.98% of 199.98 − ?

Correct Answer: (a) 0
Solution:? = 0.2998×199.98 − 0.3333×179.99 = −0.0367 (approximately 0)