Min and Neave started running together along a cross country track. When Neave completed the track in 38 minutes, Min had run only
59 of the track. Min’s average speed was 104 m/min slower than Neave’s.
- How long was the cross country track in m?
- Find Min’s average speed in m/min.
(a)
When Neave completed the track:
Neave's distance = 9 u
Min's distance = 5 u
Extra distance covered by Neave
= 9 u - 5 u
= 4 u
4 u = 104 x 38
4 u = 3952
1 u = 3952 ÷ 4 = 988
Distance of the cross country track
= 9 u
= 9 x 988
= 8892 m
(b)
Neave's speed
= 8892 ÷ 38
= 234 m/min
Min's speed
= 234 - 104
= 130 m/min
Answer(s): (a) 8892 m; (b) 130 m/min