1)

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 ?


A) 37 kmph.

B) 36 kmph.

C) 38 kmph.

D) 39 kmph.

E) 40 kmph.

Answer:

Option B

Explanation:

Let the speed of the goods train be $x$ kmph

Distance covered by goods train in 10 hours = Distance covered by express train in 4 hours

$10x=4\times 90$ or $x=36$.

So, speed of goods train = 36 kmph.