Luke and Paul started jogging from the same point. Paul started jogging 2 minutes earlier than Luke. Luke's jogging speed was 350 m/min and Paul's jogging speed was 250 m/min. They went in the same direction and did not change their speeds throughout.
- How long did it take for Luke to catch up with Paul?
- What distance would Paul have jogged when Luke caught up with him? Express your answer in meters.
|
Luke |
Paul |
Speed |
350 m/min |
250 m/min |
Start time |
|
2 min earlier |
Extra distance covered at first |
|
500 m |
(a)
Distance that Paul covered when he jogged 2 minutes earlier
= 2 x 250
= 500 m
Distance that Luke covered more than Paul per min
= 350 - 250
= 100 m
Time that Luke needed to take to cover the additional 500 m
= 500 ÷ 100
= 5 min
(b)
Time that Paul would had jogged when Luke caught up with him
= 5 + 2
= 7 min
Distance that Paul would have jogged when Luke caught up with him
= 7 x 250
= 1750 m
Answer(s): (a) 5 min; (b) 1750 m