Andy and Vaidev started jogging from the same point. Vaidev started jogging 4 minutes earlier than Andy. Andy's jogging speed was 500 m/min and Vaidev'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 Andy to catch up with Vaidev? 
2. What distance would Vaidev have jogged when Andy caught up with him?  Express your answer in meters.

	Andy	Vaidev
Speed	500 m/min	100 m/min
Start time		4 min earlier
Extra distance covered at first		400 m

(a)
Distance that Vaidev covered when he jogged 4 minutes earlier
= 4 x 100
= 400 m

Distance that Andy covered more than Vaidev per min
= 500 - 100
= 400 m

Time that Andy needed to take to cover the additional 400 m
= 400 ÷ 400
= 1 min

(b)
Time that Vaidev would had jogged when Andy caught up with him
= 1 + 4
= 5 min

Distance that Vaidev would have jogged when Andy caught up with him
= 5 x 100
= 500 m

Answer(s): (a) 1 min; (b) 500 m