Question

Emily can walk

3
4
of a mile in
1
4
of an hour.

At this same rate, how long does it take Emily to walk 1 mile?

Answer 1

20 minutes.

Explanation:

1/4 of an hour is 15 mins. If Emily can walk 3/4 of a mile in 15 mins, dividing both sides by 3 tells us it takes her 5 mins to walk 1/4 of a mile. Times both sides by 4 to find the answer - if takes her 20 mins to walk a full mile.