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Railways PYQCBT 2 2017

RRB NTPC · Question 11

A car covers a certain distance in 8 hours at a speed of 50 kmph. What should be the increase in speed to cover the same distance in 5 hours?

  1. 50 kmph

  2. 40 kmph

  3. 30 kmph

  4. 80 kmph

Show answer & explanation

Answer: (C) 30 kmph

Explanation

Distance = 50 × 8 = 400 km. To cover it in 5 hours the speed must be 80 km/h, an increase of 30 km/h.