Question

April is training for a marathon by running no less than 55 KM per week. She runs at an average rate of 10 KM per hour. What is the minimum number of hours, h, she should run.

If you guys would like I could also post the answer choices, just comment.

Answer 1

She needs to run x hours at 10 km/hr which will be greater than (no less than) 55 km, so...

10x > 55
x > 55/10
x > 5.5

So she has to run GREATER THAN 5.5 hours to run at least 55 km.

Answer 2

Answer: 5.5 hours

Explanation:

Given: April is training for a marathon by running no less than 55 km per week.

Let the number of hours be 'h'.

Then if she runs at an average rate of 10 km per hour.

Then the total running in a week = 10h

According to the question

`10h\geq55`

Divide 10 on both the sides, we get

`h\geq5.5`

Thus, the minimum number of hours she should run= 5.5