At 11 51, Xandra cycled from the cinema towards the library while Lucy cycled from the library towards the cinema. At 12 11, the two cyclists passed each other. 11 minutes later, Xandra reached library but Lucy was 1080 m from the cinema.
- At what combined speed were the two cyclists approaching each other?
- Find the distance between the library and the cinema in km.
(a)
From 11 51 to 12 11 = 20 min
Combined speed of the two cyclists
= 1080 ÷ (20 - 11)
= 120 m/min
(b)
Distance between the library and the cinema
= 20 x 120
= 2400 m
1000 m = 1 km
2400 m = 2.4 km
Distance between the library and the cinema = 2.4 km
Answer(s): (a) 120 m/min; (b) 2.4 km