Answer-A man decided to cover 7.5 km in 72 minutes. He decided to cover two thirds of the distance at 5 km/...

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Distance covered at 5 kmh-  Distance  23  7.5 km  5 km  Time taken for 5 km at 5 kmh-  Time 5 km 5 kmh  1 hour  60 minutes  Remaining distance and time-  Remaining distance  7.5 km -5 km  2.5 km  Remaining time  72 minutes - 60 minutes  12 minutes  Remaining time in hours  12 minutes 60  0.2 hours  Required speed-  Speed  2.5 km 0.2 hours 12.5 kmh

A man decided to cover 7.5 km in 72 minutes. He decided to cover two thirds of the distance at 5 km/h and the remaining at some different speed. Find the speed after two third distance has been covered.

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