Jenson and Bobby started jogging from the same point. Bobby started jogging 4 minutes earlier than Jenson. Jenson's jogging speed was 500 m/min and Bobby's jogging speed was 300 m/min. They went in the same direction and did not change their speeds throughout.

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

	Jenson	Bobby
Speed	500 m/min	300 m/min
Start time		4 min earlier
Extra distance covered at first		1200 m

(a)
Distance that Bobby covered when he jogged 4 minutes earlier
= 4 x 300
= 1200 m

Distance that Jenson covered more than Bobby per min
= 500 - 300
= 200 m

Time that Jenson needed to take to cover the additional 1200 m
= 1200 ÷ 200
= 6 min

(b)
Time that Bobby would had jogged when Jenson caught up with him
= 6 + 4
= 10 min

Distance that Bobby would have jogged when Jenson caught up with him
= 10 x 300
= 3000 m

Answer(s): (a) 6 min; (b) 3000 m