Posted by **Jonoathan** on Thursday, September 22, 2011 at 9:16pm.

A car travels up a hill at a constant speed of 45 km/h and returns down the hill at a constant speed of 70 km/h. Calculate the average speed for the round trip.

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March 24, 2017
Posted by **Jonoathan** on Thursday, September 22, 2011 at 9:16pm.

A car travels up a hill at a constant speed of 45 km/h and returns down the hill at a constant speed of 70 km/h. Calculate the average speed for the round trip.

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