Albert and John started jogging from the same point. John started jogging 4 minutes earlier than Albert. Albert's jogging speed was 250 m/min and John'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 Albert to catch up with John? 
2. What distance would John have jogged when Albert caught up with him?  Express your answer in meters.

	Albert	John
Speed	250 m/min	150 m/min
Start time		4 min earlier
Extra distance covered at first		600 m

(a)
Distance that John covered when he jogged 4 minutes earlier
= 4 x 150
= 600 m

Distance that Albert covered more than John per min
= 250 - 150
= 100 m

Time that Albert needed to take to cover the additional 600 m
= 600 ÷ 100
= 6 min

(b)
Time that John would had jogged when Albert caught up with him
= 6 + 4
= 10 min

Distance that John would have jogged when Albert caught up with him
= 10 x 150
= 1500 m

Answer(s): (a) 6 min; (b) 1500 m