The speed of a motor boat downstream is 48 km / h and the speed of this boat against the current is 42 km / h.
| April 19, 2021 | education
The speed of a motor boat downstream is 48 km / h and the speed of this boat against the current is 42 km / h. How many times is the boat’s own speed greater than the speed of the river?
1. Let’s find the speed with which the river flows.
(48 – 42) / 2 = 3 km per hour.
2. Let’s find what the boat’s own speed is.
48 – 3 = 45 km per hour.
3. Let’s find how many times the boat’s own speed is greater than the speed of the river.
45/3 = 15 p.
Answer. The boat’s own speed is 15 times greater than the speed of the river.
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