Question

A goods train leaves a station at a certain time and at

Q: Answer-A goods train leaves a station at a certain time and at a fixed speed. After 8 hours, an express tra...

Let the speed of the goods train be s kmhr Distance covered by goods train in 15 hrs s x 15 km Distance covered by express train in 7 hrs 7 x 135 km Distance covered by goods train in 15 hrs Distance covered by express train in 7 hrs So, 15s 7 135 15s 945 s 94515 63 So, Speed of goods train 63 kmhr

a fixed speed. After 8 hours, an express train leaves the same station and moves in the same direction at a uniform speed of 135 km/hr, this train catches up the goods train in 7 hours. Find the speed of the goods train.

A 56 km/hr

B 77 km/hr

C 84 km/hr

D 42 km/hr

E 63 km/hr

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