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

	Lee	Luis
Speed	500 m/min	100 m/min
Start time		4 min earlier
Extra distance covered at first		400 m

(a)
Distance that Luis covered when he jogged 4 minutes earlier
= 4 x 100
= 400 m

Distance that Lee covered more than Luis per min
= 500 - 100
= 400 m

Time that Lee needed to take to cover the additional 400 m
= 400 ÷ 400
= 1 min

(b)
Time that Luis would had jogged when Lee caught up with him
= 1 + 4
= 5 min

Distance that Luis would have jogged when Lee caught up with him
= 5 x 100
= 500 m

Answer(s): (a) 1 min; (b) 500 m