Linda and Flynn started running together along a cross country track. When Flynn completed the track in 32 minutes, Linda had run only
13 of the track. Linda’s average speed was 108 m/min slower than Flynn’s.
- How long was the cross country track in m?
- Find Linda’s average speed in m/min.
(a)
When Flynn completed the track:
Flynn's distance = 3 u
Linda's distance = 1 u
Extra distance covered by Flynn
= 3 u - 1 u
= 2 u
2 u = 108 x 32
2 u = 3456
1 u = 3456 ÷ 2 = 1728
Distance of the cross country track
= 3 u
= 3 x 1728
= 5184 m
(b)
Flynn's speed
= 5184 ÷ 32
= 162 m/min
Linda's speed
= 162 - 108
= 54 m/min
Answer(s): (a) 5184 m; (b) 54 m/min