A train crosses a 120 metre and a 70 metre long plat form in 17 sec – McqOptions

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1.	A train crosses a 120 metre and a 70 metre long plat form in 17 seconds and 12 seconds respectively. What is the speed of the train ?
A.	10 ms-1
B.	20 ms-1
C.	30 ms-1
D.	40 ms-1
Answer» B. 20 ms-1

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