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Two trains are moving in the same direct...

Two trains are moving in the same direction at the speed of 42 km/hr and 84 km/hr and their lengths are 320 metres and 380 metres respectively. What is the time taken (in seconds) by faster train to cross the slower train?

A

60

B

80

C

90

D

120

Text Solution

Verified by Experts

The correct Answer is:
A
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