Tim and Ahmad started jogging from the same point. Ahmad started jogging 9 minutes earlier than Tim. Tim's jogging speed was 400 m/min and Ahmad's jogging speed was 200 m/min. They went in the same direction and did not change their speeds throughout.

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

	Tim	Ahmad
Speed	400 m/min	200 m/min
Start time		9 min earlier
Extra distance covered at first		1800 m

(a)
Distance that Ahmad covered when he jogged 9 minutes earlier
= 9 x 200
= 1800 m

Distance that Tim covered more than Ahmad per min
= 400 - 200
= 200 m

Time that Tim needed to take to cover the additional 1800 m
= 1800 ÷ 200
= 9 min

(b)
Time that Ahmad would had jogged when Tim caught up with him
= 9 + 9
= 18 min

Distance that Ahmad would have jogged when Tim caught up with him
= 18 x 200
= 3600 m

Answer(s): (a) 9 min; (b) 3600 m