14 lamp posts are placed along a road at equal distances. The distance between the third and the eighth lamp post is 25 m.
- What is the distance between 2 lamp posts?
- What is the distance between the first and the last lamp post?
(a)
Number of intervals between the third and the eighth lamp post
= 8 - 3
= 5
Distance between 2 lamp posts
= 25 ÷ 5
= 5 m
(b)
Number of intervals between first and the last lamp post
= 14 - 1
= 13
Distance between the first and the last lamp post
= 13 x 5
= 65 m
Answer(s): (a) 5 m; (b) 65 m