A train 'P' running at the speed of 36 km/hr crosses a platform which is half of its length in one and half minute. Find the time in which train 'P' crosses another train 'Q' whose length is two times of train 'P'and running at the speed of 72 km/hr in opposite direction.
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Answer:
the answer will be 102
Speed of the train = 36 km/hr = 36 x
5/18 m/s = 10 m/s
Let, the time taken = x sec.
According to problem,
→ 10x = 1020
⇒ x = 102
:: 102 seconds is taken by the train to
cross the pole.
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