Question

5 balloons in 12 minutes. At this rate, how many balloons can she blow up in 3 hours?

Answer 1

75 ballons in 3 hours

Explanation:

We know the ratio min to balloon, 12:5.

A common factor of 60 is 12 and 5. We know that 5 balloons will come out of the 12 interval mark.
`5*5:12*5` So each hour, we get 25 balloons per hour. Multiply 3 on both sides of the equation to get the total amount of balloons.
`5*5*3:12*5*3`

So, 75 balloons is how many she can blow up in 3 hours.