Tom's rabbit can run at 25 miles per hour. His cat can run 20 miles per hour. The cat gets a 15-minute head start. In hours, how long will it take for the rabbit to catch up?
Let's think step by step.
1
The cat got a 15 / 60 =.

25 hour head start.

That means it ran 20 *.

25 = 5 miles.

The rabbit goes 25 - 20 = 5 mph faster than the cat.

So it takes 5 / 5 = 1 hour for the rabbit to catch up.

.

Therefore, the answer is 1