Question

A cross country runner Covers 2.5 miles in 12.5 minutes what is the runners average speed in miles per hour

Answer 1

I believe the answer is 5 because if however many times you can multiply 2.5 into 12.5, you get the answer of 5.

Answer 2

The average speed of the runner is 12 miles per hour.

Explanation:

Given:

A cross country runner Covers =2.5 miles

Time Taken = 12.5 minutes

To Find:

The runners average speed in miles per hour=?

Solution:

Now, we know that,

Distance = speed x time

Then, 2.5 miles = average speed x 12.5 minutes

=>
`(5)/(2) miles = \text{{average speed}} *  (25)/(2) minutes`

=>
`(5)/(2) miles = \text{{average speed}}*(25)/(2) * (1)/(60) hours`

=>
`(5)/(2) = \text{{average speed}}* ( 5)/(2) }* (1)/(12) hours`

=>
`1 = \text{{average speed}} *(1)/(12)`

=>average speed = 12

Hence, the average speed of the runner is 12 miles per hour.