Harry and Ken started jogging from the same point. Ken started jogging 2 minutes earlier than Harry. Harry's jogging speed was 400 m/min and Ken'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 Harry to catch up with Ken? 
2. What distance would Ken have jogged when Harry caught up with him?  Express your answer in meters.

	Harry	Ken
Speed	400 m/min	200 m/min
Start time		2 min earlier
Extra distance covered at first		400 m

(a)
Distance that Ken covered when he jogged 2 minutes earlier
= 2 x 200
= 400 m

Distance that Harry covered more than Ken per min
= 400 - 200
= 200 m

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

(b)
Time that Ken would had jogged when Harry caught up with him
= 2 + 2
= 4 min

Distance that Ken would have jogged when Harry caught up with him
= 4 x 200
= 800 m

Answer(s): (a) 2 min; (b) 800 m