Simplification & Approximation

J&K Bank Banking Associate · Quantitative Aptitude · 100 practice questions with answers and explanations: 67 Easy, 33 Medium, 0 Hard.

Sample questions

Sample Easy question 1

Find 25% of 80% of 600.

  1. 100
  2. 115
  3. 110
  4. 120
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Answer: D. 80% of 600 = 480; 25% of 480 = 120.

Sample Easy question 2

Find 3/4 of 2/5 of 800.

  1. 240
  2. 250
  3. 220
  4. 230
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Answer: A. 2/5 of 800 = 320; 3/4 of 320 = 240.

Sample Easy question 3

Find 5/6 of 3/4 of 480.

  1. 290
  2. 300
  3. 295
  4. 280
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Answer: B. 3/4 of 480 = 360; 5/6 of 360 = 300.

Sample Medium question 4

Simplify: (3/5 - 1/4) ÷ (1/2 + 1/5)

  1. 0.5
  2. 0.45
  3. 0.55
  4. 0.4
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Answer: A. Numerator = 7/20, denominator = 7/10; result = 7/20 × 10/7 = 1/2 = 0.5.

Sample Medium question 5

Simplify: (1/3 + 1/6) ÷ (1/4 - 1/12)

  1. 2
  2. 2.25
  3. 3
  4. 2.5
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Answer: C. Numerator = 1/2, denominator = 1/6; result = 1/2 × 6 = 3.

Sample Medium question 6

Simplify: 3/4 + 2/3 - 1/6

  1. 1.25
  2. 1
  3. 1.75
  4. 1.5
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Answer: A. LCD = 12: 9/12 + 8/12 - 2/12 = 15/12 = 1.25.

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