Two trains of equal lengths take 10 seconds and 15 seconds respectivel – McqOptions

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1.	Two trains of equal lengths take 10 seconds and 15 seconds respectively to cross a telegraph post. If the length of each train be 120 metres, in what time will they cross each other travelling in opposite direction?
A.	9 s
B.	10 s
C.	11 s
D.	12 s
Answer» E.

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