Seth and Wesley started jogging from the same point. Wesley started jogging 4 minutes earlier than Seth. Seth's jogging speed was 400 m/min and Wesley's jogging speed was 350 m/min. They went in the same direction and did not change their speeds throughout.
- How long did it take for Seth to catch up with Wesley?
- What distance would Wesley have jogged when Seth caught up with him? Express your answer in meters.
|
Seth |
Wesley |
Speed |
400 m/min |
350 m/min |
Start time |
|
4 min earlier |
Extra distance covered at first |
|
1400 m |
(a)
Distance that Wesley covered when he jogged 4 minutes earlier
= 4 x 350
= 1400 m
Distance that Seth covered more than Wesley per min
= 400 - 350
= 50 m
Time that Seth needed to take to cover the additional 1400 m
= 1400 ÷ 50
= 28 min
(b)
Time that Wesley would had jogged when Seth caught up with him
= 28 + 4
= 32 min
Distance that Wesley would have jogged when Seth caught up with him
= 32 x 350
= 11200 m
Answer(s): (a) 28 min; (b) 11200 m