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Mathematics, 09.09.2021 03:30 Mune6745

A bus travelled on a level road at an average speed of 20 mpg faster than it did on a winding road. The time spent on the winding road was 3 hours. Find the average speed on the level road if the entire trip was 396 miles.

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A bus travelled on a level road at an average speed of 20 mpg faster than it did on a winding road....
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