George rides his bike to his friend’s house that is 5 kilometers from his house. If he rides his bike at an average speed of 15 km/h, how long will it take him to get to his friend’s house?

Answer 1

speed*time = distance

Rearrange to get: time = distance/ speed

time = 5 km / 15 km/hr

time = 1/3 hr. = 20 minutes (I got that because there are 60 minute in an hour so divide by 3)