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A mining cart is pulled up a hill at 24 km/h and then pulled back down...

A mining cart is pulled up a hill at 24 km/h and then pulled back down the hill at 31 km/h through its original level. (The time required for the cart's reversal at the top of its climb is negligible.) What is the average speed of the cart for its round trip, from its original level back to its original level?

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Answer #1

Summary of Answer-We will find the average speed by dividing total distance travelled by cart with total time taken by it in this journey.

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