Oliver and Archie started jogging from the same point. Archie started jogging 10 minutes earlier than Oliver. Oliver's jogging speed was 200 m/min and Archie'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 Oliver to catch up with Archie? 
2. What distance would Archie have jogged when Oliver caught up with him?  Express your answer in meters.

	Oliver	Archie
Speed	200 m/min	100 m/min
Start time		10 min earlier
Extra distance covered at first		1000 m

(a)
Distance that Archie covered when he jogged 10 minutes earlier
= 10 x 100
= 1000 m

Distance that Oliver covered more than Archie per min
= 200 - 100
= 100 m

Time that Oliver needed to take to cover the additional 1000 m
= 1000 ÷ 100
= 10 min

(b)
Time that Archie would had jogged when Oliver caught up with him
= 10 + 10
= 20 min

Distance that Archie would have jogged when Oliver caught up with him
= 20 x 100
= 2000 m

Answer(s): (a) 10 min; (b) 2000 m