Howard and Glen started jogging from the same point. Glen started jogging 5 minutes earlier than Howard. Howard's jogging speed was 250 m/min and Glen's jogging speed was 200 m/min. They went in the same direction and did not change their speeds throughout.
- How long did it take for Howard to catch up with Glen?
- What distance would Glen have jogged when Howard caught up with him? Express your answer in meters.
|
Howard |
Glen |
Speed |
250 m/min |
200 m/min |
Start time |
|
5 min earlier |
Extra distance covered at first |
|
1000 m |
(a)
Distance that Glen covered when he jogged 5 minutes earlier
= 5 x 200
= 1000 m
Distance that Howard covered more than Glen per min
= 250 - 200
= 50 m
Time that Howard needed to take to cover the additional 1000 m
= 1000 ÷ 50
= 20 min
(b)
Time that Glen would had jogged when Howard caught up with him
= 20 + 5
= 25 min
Distance that Glen would have jogged when Howard caught up with him
= 25 x 200
= 5000 m
Answer(s): (a) 20 min; (b) 5000 m