At 12 57, Sarah cycled from the grocery store towards the playground while Yen cycled from the playground towards the grocery store. At 13 13, the two cyclists passed each other. 9 minutes later, Sarah reached playground but Yen was 1155 m from the grocery store.
- At what combined speed were the two cyclists approaching each other?
- Find the distance between the playground and the grocery store in km.
(a)
From 12 57 to 13 13 = 16 min
Combined speed of the two cyclists
= 1155 ÷ (16 - 9)
= 165 m/min
(b)
Distance between the playground and the grocery store
= 16 x 165
= 2640 m
1000 m = 1 km
2640 m = 2.64 km
Distance between the playground and the grocery store = 2.64 km
Answer(s): (a) 165 m/min; (b) 2.64 km