The distance of travel is d = (10 km/hr)(1/2 hour) = 5 km.

He then has to travel 5 km in 20 min or 1/3 hour.

So the necessary speed is v = 5 km / (1/3 hour) = 15 km/hr

Kandace N.

asked • 10/14/14I want to find the rate he must travel to complete the journey in 20 mins.

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The distance of travel is d = (10 km/hr)(1/2 hour) = 5 km.

He then has to travel 5 km in 20 min or 1/3 hour.

So the necessary speed is v = 5 km / (1/3 hour) = 15 km/hr

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