The speed of the train going from Nagpur to Allahabad is 100 km/h while when coming back from Allahabad to Nagpur, its speed is 150 km/h. find the average speed during whole journey.

FPSC Past Papers / All — Multiple-choice practice

  1. A. 120 km/hr
  2. B. 75 km/hr
  3. C. 135 km/hr
  4. D. 125 km/hr

Correct answer

120 km/hr

Explanation

Explanation Average speed,=2×x×yx+y=2×100×150100+150=200×150250=120km/hr

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