At 08 25, Vanessa left Town P and cycled towards Town Q. Jade left Town P and cycled towards Town Q at 08 55. Jade's cycling speed was 8 km/h faster than Vanessa. At 10 25, Jade caught up with Vanessa. Find the cycling speed of each cyclist.
- Vanessa
- Jade
(a)
Duration that Jade cycled from 08 55 to 10 25
= 1
3060 = 1
12 h
Distance that Jade cycled more than Vanessa
= 1
12 x 8
= 12 km
However, since Vanessa left 30 minutes earlier than Jade and Jade caught up with Vanessa, it means that Vanessa has cycled 12 km in 30 min.
1 h = 60 min
30 min = 30 ÷ 60 =
12 h
Vanessa's cycling speed
= 12 ÷
12 = 12 x
21 = 24 km/h
(b)
Jade's cycling speed
= 24 + 8
= 32 km/h
Answer(s): (a) 24 km/h ; (b) 32 km/h