You and a friend each drive 54 km. You travel at 95 km/h; your friend travels at 118 km/h. How many minutes will your friend have to wait for you at the end of the trip?

1 answer

54 km/95 = .5684 hr

54 km/118 = .4576 hr

difference = .11 hr

.11 hr * 60 min/hr = 6.647 min

which is 6 minutes and 39 seconds