Ahmad and Henry started jogging from the same point. Henry started jogging 4 minutes earlier than Ahmad. Ahmad's jogging speed was 300 m/min and Henry'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 Ahmad to catch up with Henry? 
2. What distance would Henry have jogged when Ahmad caught up with him?  Express your answer in meters.

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

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

Distance that Ahmad covered more than Henry per min
= 300 - 100
= 200 m

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

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

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

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