David and Cole started jogging from the same point. Cole started jogging 5 minutes earlier than David. David's jogging speed was 400 m/min and Cole's jogging speed was 300 m/min. They went in the same direction and did not change their speeds throughout.

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

	David	Cole
Speed	400 m/min	300 m/min
Start time		5 min earlier
Extra distance covered at first		1500 m

(a)
Distance that Cole covered when he jogged 5 minutes earlier
= 5 x 300
= 1500 m

Distance that David covered more than Cole per min
= 400 - 300
= 100 m

Time that David needed to take to cover the additional 1500 m
= 1500 ÷ 100
= 15 min

(b)
Time that Cole would had jogged when David caught up with him
= 15 + 5
= 20 min

Distance that Cole would have jogged when David caught up with him
= 20 x 300
= 6000 m

Answer(s): (a) 15 min; (b) 6000 m