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A man walking at a speed of 8 km/hr covers a certain distance in 1 hour 45 minutes. If he runs at a speed of 10 km/hr, in what time he will cover the same distance?A)70minB)84minC)65minD)90min

Question

A man walking at a speed of 8 km/hr covers a certain distance in 1 hour 45 minutes. If he runs at a speed of 10 km/hr, in what time he will cover the same distance?A)70minB)84minC)65minD)90min

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Solution

First, we need to find out the distance the man covers walking at a speed of 8 km/hr for 1 hour 45 minutes.

1 hour 45 minutes is 1.75 hours in decimal form.

So, the distance covered = speed * time = 8 km/hr * 1.75 hr = 14 km.

Next, we need to find out how long it would take the man to cover the same distance running at a speed of 10 km/hr.

Time = Distance / Speed = 14 km / 10 km/hr = 1.4 hours.

1.4 hours is 84 minutes in decimal form.

So, the answer is B) 84 minutes.

This problem has been solved

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