Question

A train has to cover a distance of 400 km in 25 hours. If it covers half journey in 3/5th time, then the speed of covering the remaining distance in the time left has to be:

A 20 km/hr Correct Answer Incorrect Answer
B 11.25 km/hr Correct Answer Incorrect Answer
C 15 km/hr Correct Answer Incorrect Answer
D 17.5 km/hr Correct Answer Incorrect Answer
E 13.5 km/hr Correct Answer Incorrect Answer

Solution

Speed = Distance/time = 400/25 = 16 km/hr According to the question, New time = 3/5 x 25 = 15 hrs New distance = 1/2 x 400 = 200 km Required speed = Distance left/Time left = 200/10 = 20 km/hr

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