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Railways PYQCBT 2 2017

RRB NTPC · Question 64

A trip from Mumbai to Pune takes 4 hours 30 minutes at a speed of 60 km/hr. How long (in hours) will it take to complete, if the speed is 15 m/sec?

  1. \(3 \frac{3}{4}\)

  2. 5

  3. \(4 \frac{2}{3}\)

  4. 4

Show answer & explanation

Answer: (B) 5

Explanation

Distance = 60 × 4.5 = 270 km. 15 m/s = 15 × 18/5 = 54 km/h, so the time = 270/54 = 5 hours.