Will and Valen started jogging from the same point. Valen started jogging 4 minutes earlier than Will. Will's jogging speed was 400 m/min and Valen'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 Will to catch up with Valen? 
2. What distance would Valen have jogged when Will caught up with him?  Express your answer in meters.

	Will	Valen
Speed	400 m/min	300 m/min
Start time		4 min earlier
Extra distance covered at first		1200 m

(a)
Distance that Valen covered when he jogged 4 minutes earlier
= 4 x 300
= 1200 m

Distance that Will covered more than Valen per min
= 400 - 300
= 100 m

Time that Will needed to take to cover the additional 1200 m
= 1200 ÷ 100
= 12 min

(b)
Time that Valen would had jogged when Will caught up with him
= 12 + 4
= 16 min

Distance that Valen would have jogged when Will caught up with him
= 16 x 300
= 4800 m

Answer(s): (a) 12 min; (b) 4800 m