The train ran for 10 hours at a speed of 63 km / h. What should be the speed of a train to cover the same distance in 9 hours?

Let us determine the distance that the train travels in 10 hours, provided that its speed is 63 km / h, using the formula:
S = V * t = 63 * 10 = 630 km.
Let’s calculate how many km per hour a train must travel to cover this distance in 9 hours:
V = S: t = 630: 9 = 70 km / h. Consequently, the speed will increase.



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