The boat is smoother downstream for 4 hours and against the current for 3 hours.
| April 20, 2021 | education
The boat is smoother downstream for 4 hours and against the current for 3 hours. The boat’s own speed is 40.4 km / h and the speed of the river is 2 km / h. what way the boat went.
The unknown path traveled by the boat for the entire time is determined using the conditional variable “Y”.
Based on the data from this example, we get the following expression: Y = 4 x (40.4 + 2) + 3 x (40.4 – 2).
The result of the calculation performed looks like this Y = 4 x 42.4 + 3 x 38.4 = 169.6 + 115.2 = 284.8 kilometers.
Answer: The boat crossed 284.8 kilometers.
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