Flynn and Ahmad started jogging from the same point. Ahmad started jogging 3 minutes earlier than Flynn. Flynn's jogging speed was 400 m/min and Ahmad'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 Flynn to catch up with Ahmad?
- What distance would Ahmad have jogged when Flynn caught up with him? Express your answer in meters.
|
Flynn |
Ahmad |
Speed |
400 m/min |
350 m/min |
Start time |
|
3 min earlier |
Extra distance covered at first |
|
1050 m |
(a)
Distance that Ahmad covered when he jogged 3 minutes earlier
= 3 x 350
= 1050 m
Distance that Flynn covered more than Ahmad per min
= 400 - 350
= 50 m
Time that Flynn needed to take to cover the additional 1050 m
= 1050 ÷ 50
= 21 min
(b)
Time that Ahmad would had jogged when Flynn caught up with him
= 21 + 3
= 24 min
Distance that Ahmad would have jogged when Flynn caught up with him
= 24 x 350
= 8400 m
Answer(s): (a) 21 min; (b) 8400 m