John and Fabian started jogging from the same point. Fabian started jogging 4 minutes earlier than John. John's jogging speed was 500 m/min and Fabian'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 John to catch up with Fabian? 
2. What distance would Fabian have jogged when John caught up with him?  Express your answer in meters.

	John	Fabian
Speed	500 m/min	100 m/min
Start time		4 min earlier
Extra distance covered at first		400 m

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

Distance that John covered more than Fabian per min
= 500 - 100
= 400 m

Time that John needed to take to cover the additional 400 m
= 400 ÷ 400
= 1 min

(b)
Time that Fabian would had jogged when John caught up with him
= 1 + 4
= 5 min

Distance that Fabian would have jogged when John caught up with him
= 5 x 100
= 500 m

Answer(s): (a) 1 min; (b) 500 m