Data Interpretation

JKSSB Sub-Inspector (Telecommunication) · Basic Numeracy · 100 practice questions with answers and explanations: 31 Easy, 38 Medium, 31 Hard.

Sample questions

Sample Easy question 1

A shop sold 60 items in one month and 75 the next. Find the percentage increase.

  1. 20%
  2. 22%
  3. 25%
  4. 28%
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Answer: C. Increase = 15, percentage = 15/60 × 100 = 25%.

Sample Medium question 2

Out of 900 people surveyed, 550 like cricket, 400 like football, and 200 like both. How many like neither?

  1. 145
  2. 148
  3. 150
  4. 152
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Answer: C. Like at least one = 550+400-200 = 750; neither = 900-750 = 150.

Sample Hard question 3

A company's profit rose by 15% in year 1 and fell by 10% in year 2. If the initial profit was Rs. 6,00,000, find the profit after year 2.

  1. 6,11,000
  2. 6,21,000
  3. 6,31,000
  4. 6,41,000
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Answer: B. After year 1: 6,00,000 × 1.15 = 6,90,000. After year 2: 6,90,000 × 0.9 = 6,21,000.

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