The boat, the own speed of which is 15 km / h, spent 0.8 hours on the way upstream of the river, and 0.7 hours

| March 16, 2021 | education

The boat, the own speed of which is 15 km / h, spent 0.8 hours on the way upstream of the river, and 0.7 hours on the opposite direction. What distance did the boat cover if the speed of the river flow was 1 km / h?

First, let’s calculate the number of kilometers that the boat passed against the current.

1) (15 – 1) * 0.8 = 11.2 (kilometers) – the boat passed against the current.

Next, we calculate the number of kilometers that the boat has traveled along the river.

2) (15 + 1) * 0.7 = 11.2 (kilometers) – the boat passed along the river.

Now we can answer the main question of the problem. What is the distance the boat traveled, provided that the speed of the river flow is 1 km / h.

3) 11.2 + 11.2 = 22.4 (kilometers) – total distance.

Answer: the total distance covered by the boat is 22.4 kilometers.



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