John and Zeph started jogging from the same point. Zeph started jogging 6 minutes earlier than John. John's jogging speed was 300 m/min and Zeph's jogging speed was 150 m/min. They went in the same direction and did not change their speeds throughout.

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

	John	Zeph
Speed	300 m/min	150 m/min
Start time		6 min earlier
Extra distance covered at first		900 m

(a)
Distance that Zeph covered when he jogged 6 minutes earlier
= 6 x 150
= 900 m

Distance that John covered more than Zeph per min
= 300 - 150
= 150 m

Time that John needed to take to cover the additional 900 m
= 900 ÷ 150
= 6 min

(b)
Time that Zeph would had jogged when John caught up with him
= 6 + 6
= 12 min

Distance that Zeph would have jogged when John caught up with him
= 12 x 150
= 1800 m

Answer(s): (a) 6 min; (b) 1800 m