Multiple choice

A man covered a certain distance by train at a speed of 25 km/hr and walked back the same distance at a rate of 4 km/hr. The whole journey took 5 hours and 48 minutes. Calculate the distance he covered one way.

  1. 19 km

  2. 20 km

  3. 26 km

  4. 28 km
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let distance be D. Total time = D/25 + D/4 = 5 hours 48 minutes = 5.8 hours. (4D + 25D) / 100 = 5.8, so 29D / 100 = 5.8, D = 5.8 * 100 / 29 = 20 km.

AI explanation

Let the one-way distance be d kilometers. The total time taken for the journey is 5 hours and 48 minutes, which is 5 + 48/60 = 29/5 hours. Using the time formula, the equation is d/25 + d/4 = 29/5. Adding the terms gives 29d / 100 = 29/5, which simplifies to d = 20. The distance he covered one way is 20 km.

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