Math, asked by chotucable1973, 7 months ago

While boarding a train,passenger got hurt.In getting him first aid,the train left the station 1 hour late. The Driver increased the speed by 9km/hr than its usual speed and reached the destination 180 km away in time.what was the usual speed of the train?

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Answered by shivu2010

1

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the above pic has the answer.

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