Question

Kaitlin is on a long car trip. Everytime she stops for gas she loses 15 minutes of travel time. If she has to stop fives times how late will she be getting to her destination.

Answer 1

She will be 75 minutes late because you take the 15 minutes per stop and multiply it by the five stops.

Answer 2

For this you multiply
$15 \times 5$
Which gets you 75. If you turn this into hours and minutes you get 1 hour and 15 minutes. So she will be 1 hour and 15 minutes late. :)