1.

A man walks from A to B and back in a certain time at the rate of 3.5 km per hour. But if he had walked from A to B at the rate of 3 km per hour and back from B to A at the rate of 4 km a hour, he would have taken 5 minutes longer. Find the distance between A and B:

Answer»

(a)7 km
(b)8 km
(C)9 km
(d)10 km

Answer :7 km


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