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SSC CHSL 2020 · PYQ · Percentage · medium

A runner is running at a speed of 40 km/h. If he runs at a speed of 30 km/h, then what will the decrease in the percentage of his speed be?

Answer

The correct answer is B: 25%. Decrease in speed = 40−30 = 10 km/h. Percentage decrease = (10/40)×100 = 25%.

  1. A.20%
  2. B.25%✓ Correct
  3. C.15%
  4. D.30%

Explanation

Decrease in speed = 40−30 = 10 km/h. Percentage decrease = (10/40)×100 = 25%.
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