Rael and Mark started jogging from the same point. Mark started jogging 4 minutes earlier than Rael. Rael's jogging speed was 500 m/min and Mark's jogging speed was 250 m/min. They went in the same direction and did not change their speeds throughout.

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

	Rael	Mark
Speed	500 m/min	250 m/min
Start time		4 min earlier
Extra distance covered at first		1000 m

(a)
Distance that Mark covered when he jogged 4 minutes earlier
= 4 x 250
= 1000 m

Distance that Rael covered more than Mark per min
= 500 - 250
= 250 m

Time that Rael needed to take to cover the additional 1000 m
= 1000 ÷ 250
= 4 min

(b)
Time that Mark would had jogged when Rael caught up with him
= 4 + 4
= 8 min

Distance that Mark would have jogged when Rael caught up with him
= 8 x 250
= 2000 m

Answer(s): (a) 4 min; (b) 2000 m