At 08 25, Elyse left Town M and cycled towards Town N. Fanny left Town M and cycled towards Town N at 08 55. Fanny's cycling speed was 4 km/h faster than Elyse. At 13 25, Fanny caught up with Elyse. Find the cycling speed of each cyclist.
- Elyse
- Fanny
(a)
Duration that Fanny cycled from 08 55 to 13 25
= 4
3060 = 4
12 h
Distance that Fanny cycled more than Elyse
= 4
12 x 4
= 18 km
However, since Elyse left 30 minutes earlier than Fanny and Fanny caught up with Elyse, it means that Elyse has cycled 18 km in 30 min.
1 h = 60 min
30 min = 30 ÷ 60 =
12 h
Elyse's cycling speed
= 18 ÷
12 = 18 x
21 = 36 km/h
(b)
Fanny's cycling speed
= 36 + 4
= 40 km/h
Answer(s): (a) 36 km/h ; (b) 40 km/h
