A boat and a boat departed from the pier in opposite directions. The boat’s speed was 6 km / h, which is 5 times

| February 11, 2021 | education

A boat and a boat departed from the pier in opposite directions. The boat’s speed was 6 km / h, which is 5 times less than the speed of the boat. After what time was the distance between them 144 km?

1) What is the speed of the boat? If the speed of the boat is 5 times less than the speed of the boat, then the speed of the boat, on the contrary, is 5 times the speed of the boat.

6 * 5 = 30 (km / h).

2) What is the speed of convergence between the boat and the boat? When moving in opposite directions, the speed of approach is equal to the sum of the speeds of the moving objects. v sb. = v1 + v2.

30 + 6 = 36 (km / h).

3) How many hours will the distance between the boat and the boat be 144 km? To find time, you need to divide the distance by the speed. t = S: v.

144: 36 = 4 (h).

Answer. After 4 hours.



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