Question

Train ‘X’ takes 54 seconds to pass a tree and 48 seconds to completely cross train ‘Y’ when they are moving in opposite directions. If the speed of train ‘X’ is 36 km/h and the speed of train ‘Y’ is 54 km/h, what is the length of train ‘Y’?

A 237 m
B 723 m
C 938 m
D 660 m
E None of these
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