A goods train leaves a station at a certain time and at a fixed speed After 6 hours an express train...........

Quant (SSC) Time & distance

A goods train leaves a station at a certain time and at a fixed speed. After 6 hours, an express train leaves the same station and moves in the same direction at a uniform speed of 90 kmph, this train catches up the goods train in 4 hours. Find the speed of the goods train.

12 kmph

24 kmph

36 kmph

42 kmph

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Explanation:

Let the speed of the goods train be x kmph.
Distance covered by goods train in 10 hrs = Distance covered by express train in 4 hrs
So, 10x = 4 × 90 or x = 36.
So, Speed of goods train = 36 kmph.