GRE Exam Numerical Ability Time Distance and Speed

A train runs at the speed of 36kmph how many meters will it cover in 3 min

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GRE Other Question

After travelling 30km i found that 2/5 of the journey is still left. what is the total distance of the jounrney A train travels from a to b at the speed of 20kmph and from b to a at the speed of 30kmph. then what is the average speed to train in kmph