Billy and Ryan started jogging from the same point. Ryan started jogging 4 minutes earlier than Billy. Billy's jogging speed was 300 m/min and Ryan's jogging speed was 100 m/min. They went in the same direction and did not change their speeds throughout.

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

	Billy	Ryan
Speed	300 m/min	100 m/min
Start time		4 min earlier
Extra distance covered at first		400 m

(a)
Distance that Ryan covered when he jogged 4 minutes earlier
= 4 x 100
= 400 m

Distance that Billy covered more than Ryan per min
= 300 - 100
= 200 m

Time that Billy needed to take to cover the additional 400 m
= 400 ÷ 200
= 2 min

(b)
Time that Ryan would had jogged when Billy caught up with him
= 2 + 4
= 6 min

Distance that Ryan would have jogged when Billy caught up with him
= 6 x 100
= 600 m

Answer(s): (a) 2 min; (b) 600 m