Vincent and Pierre started jogging from the same point. Pierre started jogging 9 minutes earlier than Vincent. Vincent's jogging speed was 400 m/min and Pierre'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 Vincent to catch up with Pierre? 
2. What distance would Pierre have jogged when Vincent caught up with him?  Express your answer in meters.

	Vincent	Pierre
Speed	400 m/min	100 m/min
Start time		9 min earlier
Extra distance covered at first		900 m

(a)
Distance that Pierre covered when he jogged 9 minutes earlier
= 9 x 100
= 900 m

Distance that Vincent covered more than Pierre per min
= 400 - 100
= 300 m

Time that Vincent needed to take to cover the additional 900 m
= 900 ÷ 300
= 3 min

(b)
Time that Pierre would had jogged when Vincent caught up with him
= 3 + 9
= 12 min

Distance that Pierre would have jogged when Vincent caught up with him
= 12 x 100
= 1200 m

Answer(s): (a) 3 min; (b) 1200 m