At 12 57, Emily cycled from the mosque towards the grocery store while Abi cycled from the grocery store towards the mosque. At 13 15, the two cyclists passed each other. 15 minutes later, Emily reached grocery store but Abi was 1200 m from the mosque.
- At what combined speed were the two cyclists approaching each other?
- Find the distance between the grocery store and the mosque in km.
(a)
From 12 57 to 13 15 = 18 min
Combined speed of the two cyclists
= 1200 ÷ (18 - 15)
= 400 m/min
(b)
Distance between the grocery store and the mosque
= 18 x 400
= 7200 m
1000 m = 1 km
7200 m = 7.2 km
Distance between the grocery store and the mosque = 7.2 km
Answer(s): (a) 400 m/min; (b) 7.2 km