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 BExplanation: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.
