Archie and Jenson started jogging from the same point. Jenson started jogging 6 minutes earlier than Archie. Archie's jogging speed was 500 m/min and Jenson'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 Archie to catch up with Jenson?
- What distance would Jenson have jogged when Archie caught up with him? Express your answer in meters.
|
Archie |
Jenson |
Speed |
500 m/min |
250 m/min |
Start time |
|
6 min earlier |
Extra distance covered at first |
|
1500 m |
(a)
Distance that Jenson covered when he jogged 6 minutes earlier
= 6 x 250
= 1500 m
Distance that Archie covered more than Jenson per min
= 500 - 250
= 250 m
Time that Archie needed to take to cover the additional 1500 m
= 1500 ÷ 250
= 6 min
(b)
Time that Jenson would had jogged when Archie caught up with him
= 6 + 6
= 12 min
Distance that Jenson would have jogged when Archie caught up with him
= 12 x 250
= 3000 m
Answer(s): (a) 6 min; (b) 3000 m