Question

A cyclist travels 3 miles in 15 minutes and then a further 7 miles in 25 minutes without stopping.

Calculate the cyclist's average speed in mph.

Answer 1

v = 15 mph

Explanation:

Given that,

A cyclist travels 3 miles in 15 minutes and then a further 7 miles in 25 minutes without stopping.

Total distance, d = 3 + 7 = 10 miles

Total time, t = 15 + 25 = 40 minutes = 0.6667 hours

Average speed,

`v=(d)/(t)`

Put all the value,

`v=(10)/(0.6667)\\\\= $$14.99\ mph`

or

v = 15 mph

So, the required average speed is equal to 15 mph.