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Two trains are moving on two parallel tr...

Two trains are moving on two parallel tracks but in opposite directions. A person sitting in the train moving at the speed of 80 km/hr passes the second train in 18 seconds. If the length of the second train is 1000 m, its speed is :

A

100 km/hr

B

120 km/hr

C

140 km/hr

D

150 km/hr

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The correct Answer is:
B
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