Math Homework need help asap please!!!?

Question

In a bike race Josh gives Rob a 500 meter advantage. Also josh agrees to start the race 15 minutes after rob.If josh bikes at 17KM/hour and Rob at 14 Km/hour, how long will it take josh to overtake rob?

I dont know how to set this problem up

Answer 1

The distance travelled by Rob t hr. after starting is 0.5 + 14t km.

The distance travelled by Josh t hr. after starting is 17t km.

The two meet when:

0.5 + 14t = 17t

3t = 0.5

t = 0.5 / 3 hr.

= 60 * 0.5 / 3

t = 10 min.