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

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

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

Distance that Henry covered more than Sean per min
= 500 - 250
= 250 m

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

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

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

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