Zeph and Bobby started jogging from the same point. Bobby started jogging 5 minutes earlier than Zeph. Zeph's jogging speed was 300 m/min and Bobby's jogging speed was 200 m/min. They went in the same direction and did not change their speeds throughout.

1. How long did it take for Zeph to catch up with Bobby? 
2. What distance would Bobby have jogged when Zeph caught up with him?  Express your answer in meters.

	Zeph	Bobby
Speed	300 m/min	200 m/min
Start time		5 min earlier
Extra distance covered at first		1000 m

(a)
Distance that Bobby covered when he jogged 5 minutes earlier
= 5 x 200
= 1000 m

Distance that Zeph covered more than Bobby per min
= 300 - 200
= 100 m

Time that Zeph needed to take to cover the additional 1000 m
= 1000 ÷ 100
= 10 min

(b)
Time that Bobby would had jogged when Zeph caught up with him
= 10 + 5
= 15 min

Distance that Bobby would have jogged when Zeph caught up with him
= 15 x 200
= 3000 m

Answer(s): (a) 10 min; (b) 3000 m