Mark and Jack started jogging from the same point. Jack started jogging 10 minutes earlier than Mark. Mark's jogging speed was 300 m/min and Jack'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 Mark to catch up with Jack? 
2. What distance would Jack have jogged when Mark caught up with him?  Express your answer in meters.

	Mark	Jack
Speed	300 m/min	150 m/min
Start time		10 min earlier
Extra distance covered at first		1500 m

(a)
Distance that Jack covered when he jogged 10 minutes earlier
= 10 x 150
= 1500 m

Distance that Mark covered more than Jack per min
= 300 - 150
= 150 m

Time that Mark needed to take to cover the additional 1500 m
= 1500 ÷ 150
= 10 min

(b)
Time that Jack would had jogged when Mark caught up with him
= 10 + 10
= 20 min

Distance that Jack would have jogged when Mark caught up with him
= 20 x 150
= 3000 m

Answer(s): (a) 10 min; (b) 3000 m