Henry and Glen started jogging from the same point. Glen started jogging 9 minutes earlier than Henry. Henry's jogging speed was 350 m/min and Glen'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 Henry to catch up with Glen? 
2. What distance would Glen have jogged when Henry caught up with him?  Express your answer in meters.

	Henry	Glen
Speed	350 m/min	200 m/min
Start time		9 min earlier
Extra distance covered at first		1800 m

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

Distance that Henry covered more than Glen per min
= 350 - 200
= 150 m

Time that Henry needed to take to cover the additional 1800 m
= 1800 ÷ 150
= 12 min

(b)
Time that Glen would had jogged when Henry caught up with him
= 12 + 9
= 21 min

Distance that Glen would have jogged when Henry caught up with him
= 21 x 200
= 4200 m

Answer(s): (a) 12 min; (b) 4200 m