Two trains are moving in opposite directions at the speed of 50 and 70 – McqOptions

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1.	Two trains are moving in opposite directions at the speed of 50 and 70 km/ph. Their lengths are 150m and 100m. The time required for their crossing is:
A.	5 seconds
B.	7.5 seconds
C.	40 seconds
D.	None
Answer» C. 40 seconds

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