A train travelling at constant speed crosses two persons walking in th – McqOptions

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1.	A train travelling at constant speed crosses two persons walking in the same direction in 4 seconds and 4.2 seconds, respectively. The first person was walking at the speed of 4.5 kmph while the second was walking at the speed of 6 kmph. What was the speed of the train in kmph?
A.	42
B.	36
C.	40
D.	32
Answer» C. 40

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