Lamp posts were located at an equal distance of 24 m apart from one another, starting from the beginning of the road. Between every 2 lamp posts, there were 2 bushes, planted 8 m apart.
- What was the distance between the first bush and the 6th bush?
- What was the distance between the eighth bush and the twelfth bush?
- Given that the stretch of road was 192 m, how many bushes were there?
Lamp post ↔ bush ↔ bush ↔ Lamp post ↔ bush ↔ bush ↔ Lamp post ↔ bush ↔ bush ↔ Lamp post
(a)
Length of each gap
= 24 ÷ 3
= 8
Distance between first and 6th bush
= 7 intervals
= 7 x 8
= 56 m
(b)
Distance between eighth and twelfth bush
= 6 intervals
= 6 x 8
= 48 m
(c)
Distance between 2 lamp posts = 24 m
Number of sets of 24 m
= 192 ÷ 24
= 8
Number of bushes
= 8 x 2
= 16
Answer(s): (a) 56 m; (b) 48 m; (c) 16