Japheth and David started jogging from the same point. David started jogging 8 minutes earlier than Japheth. Japheth's jogging speed was 300 m/min and David'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 Japheth to catch up with David? 
2. What distance would David have jogged when Japheth caught up with him?  Express your answer in meters.

	Japheth	David
Speed	300 m/min	150 m/min
Start time		8 min earlier
Extra distance covered at first		1200 m

(a)
Distance that David covered when he jogged 8 minutes earlier
= 8 x 150
= 1200 m

Distance that Japheth covered more than David per min
= 300 - 150
= 150 m

Time that Japheth needed to take to cover the additional 1200 m
= 1200 ÷ 150
= 8 min

(b)
Time that David would had jogged when Japheth caught up with him
= 8 + 8
= 16 min

Distance that David would have jogged when Japheth caught up with him
= 16 x 150
= 2400 m

Answer(s): (a) 8 min; (b) 2400 m