The length of the reservoir is 200 kilometers longer than its width. A boat trip at the same speed through

| February 12, 2021 | education

The length of the reservoir is 200 kilometers longer than its width. A boat trip at the same speed through the reservoir takes 30 hours along its length and 20 hours in width. Find the length and width of this reservoir.

To solve this problem, the first step is to determine the speed of the boat.
Knowing that the length of the reservoir is 200 kilometers greater than its width and the difference in boat trips is 10 hours (30 – 20 = 10 hours), we find the speed of the boat, which is 200/10 = 20 kilometers per hour.
Then, the length of the reservoir will be equal to 20 km / h multiplied by 30 hours.
As a result, we get the length of the reservoir equal to 20 x 30 = 600 kilometers.
The width of the reservoir will be equal to 20 km / h multiplied by 20 hours.
As a result, we get the width of the reservoir equal to 20 x 20 = 400 kilometers.
Answer: length – 600 km, width – 400 km.



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