At 11 59, Mary cycled from the mall towards the temple while Betty cycled from the temple towards the mall. At 12 17, the two cyclists passed each other. 11 minutes later, Mary reached temple but Betty was 1050 m from the mall.
- At what combined speed were the two cyclists approaching each other?
- Find the distance between the temple and the mall in km.
(a)
From 11 59 to 12 17 = 18 min
Combined speed of the two cyclists
= 1050 ÷ (18 - 11)
= 150 m/min
(b)
Distance between the temple and the mall
= 18 x 150
= 2700 m
1000 m = 1 km
2700 m = 2.7 km
Distance between the temple and the mall = 2.7 km
Answer(s): (a) 150 m/min; (b) 2.7 km