She puts the boat in a lake and it travels m at a constant speed.
On the way back to Pilar, the boat travels the same route at the same speed for minutes, and then Pilar uses the remote control to increase the boats speed by m/min.
So the return trip is seconds faster. How long does the return trip take?
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Q. A train is running at a speed of 72km/hr. A boy runs inside the train in same direction (as that of train) with a speed of 10km/hr with respect to the train. Find the velocity of boy as seen from the ground.
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