At 13 55, Gillian cycled from the grocery store towards the school while Usha cycled from the school towards the grocery store. At 14 12, the two cyclists passed each other. 11 minutes later, Gillian reached school but Usha was 1140 m from the grocery store.
- At what combined speed were the two cyclists approaching each other?
- Find the distance between the school and the grocery store in km.
(a)
From 13 55 to 14 12 = 17 min
Combined speed of the two cyclists
= 1140 ÷ (17 - 11)
= 190 m/min
(b)
Distance between the school and the grocery store
= 17 x 190
= 3230 m
1000 m = 1 km
3230 m = 3.23 km
Distance between the school and the grocery store = 3.23 km
Answer(s): (a) 190 m/min; (b) 3.23 km