ArithmeticQuestion 400 of 550

Two runners run in the same direction on a circular track 400 m long, at 6 m/s and 4 m/s. They start from the same point. After how many seconds does the faster runner lead by one full lap?

  1. 40 seconds
  2. 200 seconds
  3. 80 seconds
  4. 400 seconds
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Correct answer: 200 seconds

The difference in speed = 6 − 4 = 2 m/s. Time = 400 ÷ 2 = 200 seconds.

Test structure: ETEC guide to the GAT

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Questions last reviewed: 21 October 2026