Data Interpretation

JKSSB Class-IV & MTS · Mathematics · 100 practice questions with answers and explanations: 31 Easy, 38 Medium, 31 Hard.

Sample questions

Sample Easy question 1

In a school of 600 students, 40% are girls. How many are boys?

  1. 355
  2. 358
  3. 360
  4. 362
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Answer: C. Girls = 40% of 600 = 240, boys = 600 - 240 = 360.

Sample Medium question 2

A company's annual revenue grew from Rs. 8,00,000 to Rs. 10,00,000. Find the percentage growth.

  1. 20%
  2. 22%
  3. 25%
  4. 28%
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Answer: C. Growth = 2,00,000, percentage = 2,00,000/8,00,000 × 100 = 25%.

Sample Hard question 3

A city's population increased by 10% in year 1 and by a further 10% in year 2. If the initial population was 1,00,000, find the population after year 2.

  1. 1,18,000
  2. 1,19,000
  3. 1,21,000
  4. 1,22,000
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Answer: C. After year 1: 1,10,000. After year 2: 1,10,000 × 1.1 = 1,21,000.

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