BANK & INSURANCE (SIMPLIFICATION PERCENTAGE) Part 2

Total Questions: 40

31. 55% of 1300 + 44% of 2900 = X

Correct Answer: (a) 1991
Solution:

55% of 1300 = 0.55 × 1300 = 715

44% of 2900 = 0.44 × 2900 = 1276

X = 715 + 1276 = 1991

Answer: 1991

32. 37.5% of 1920 + 17² = X + 13 × 15

Correct Answer: (b) 814
Solution:

37.5% of 1920 = (3/8) × 1920 = 720

17² = 289

LHS = 720 + 289 = 1009

13 × 15 = 195

1009 = X + 195

X = 1009 − 195 = 814

Answer: 814

33. 39² − 199 + 16% of 300 + 21² of 6 = X

Correct Answer: (c) 4016
Solution:

39² = 1521

16% of 300 = 0.16 × 300 = 48

21² = 441, so 21² of 6 = 441 × 6 = 2646

X = 1521 − 199 + 48 + 2646

X = 4016

Answer: 4016

34. 44.44% of 1800 − 1121 = X − 921

Correct Answer: (d) 600
Solution:

44.44% of 1800 ≈ (4/9) × 1800 = 800

800 − 1121 = −321

−321 = X − 921

X = −321 + 921 = 600

Answer: 600

35. 24% of 1850 − 160 = X + 45

Correct Answer: (a) 239
Solution:

24% of 1850 = 0.24 × 1850 = 444

444 − 160 = 284

284 = X + 45

X = 284 − 45 = 239

Answer: 239

36. 45² + 175 − 22% of 1600 = X

Correct Answer: (b) 1848
Solution:

45² = 2025

22% of 1600 = 0.22 × 1600 = 352

X = 2025 + 175 − 352

X = 1848

Answer: 1848

37. 33.33% of 2100 − 879 = X − 1217

Correct Answer: (d) 1038
Solution:

33.33% = 1/3

1/3 of 2100 = 700

700 − 879 = −179

−179 = X − 1217

X = −179 + 1217 = 1038

Answer: 1038

38. 12² + (15 × 25) − 612 + 60% of 210 = ?

Correct Answer: (a) 33
Solution:

12² = 144

15 × 25 = 375

60% of 210 = 0.60 × 210 = 126

144 + 375 − 612 + 126 = 33

Answer: 33

39. 12.5% of 552 − 66.66% of 18 + 75% of 48 + ³√1728 = ?

Correct Answer: (c) 105
Solution:

12.5% = 1/8, so 1/8 of 552 = 69

66.66% = 2/3, so 2/3 of 18 = 12

75% of 48 = 0.75 × 48 = 36

³√1728 = 12

69 − 12 + 36 + 12 = 105

Answer: 105

40. (24% of 512) / (16% of 48) = (X% of 25) / (62% of 12)

Correct Answer: (b) 476.16
Solution:

24% of 512 = 0.24 × 512 = 122.88

16% of 48 = 0.16 × 48 = 7.68

LHS = 122.88 ÷ 7.68 = 16

62% of 12 = 0.62 × 12 = 7.44

X% of 25 = (X/100) × 25 = X/4

RHS = (X/4) ÷ 7.44 = X ÷ 29.76

So, X/29.76 = 16 ⇒ X = 16 × 29.76 = 476.16

Answer: 476.16