What will be the speed of the train in Kmph? If

A 150 mt. long train crosses a signal post in 7 sec. What is the speed of the train in kmph?

  1. 77 km/hr.
  2. 77 ⅓ km/hr
  3. 77 ⅕ km/hr
  4. 77 ⅟7 km/hr
Monis Rasool Professor Asked on 25th May 2015 in Maths.
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1 Answer(s)

Answer: (d) 540/7 km/hr.
Explanation:

Length of the train = 150 mt.
Train covered distance in 7 sec = 150 m
Therefore speed of train  = 150/7 m/sec.
Speed in Km/hr = 150 x 18/7 x 5 = 540/7 km/hr.

Hence, the speed of the train = 540/7 km/hr.

Anurag Mishra Professor Answered on 25th May 2015.
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