Riordan and Eric started jogging from the same point. Eric started jogging 4 minutes earlier than Riordan. Riordan's jogging speed was 450 m/min and Eric's jogging speed was 350 m/min. They went in the same direction and did not change their speeds throughout.

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

	Riordan	Eric
Speed	450 m/min	350 m/min
Start time		4 min earlier
Extra distance covered at first		1400 m

(a)
Distance that Eric covered when he jogged 4 minutes earlier
= 4 x 350
= 1400 m

Distance that Riordan covered more than Eric per min
= 450 - 350
= 100 m

Time that Riordan needed to take to cover the additional 1400 m
= 1400 ÷ 100
= 14 min

(b)
Time that Eric would had jogged when Riordan caught up with him
= 14 + 4
= 18 min

Distance that Eric would have jogged when Riordan caught up with him
= 18 x 350
= 6300 m

Answer(s): (a) 14 min; (b) 6300 m