# What is the Distance Between the First and Ninth Tree?

There are nine mango trees in a straight line. The distance between each mango tree is 2.5 metres. What is the distance between the first tree and the ninth tree?

- 20 m
- 22 m
- 22.5 m
- 18 m

Number of trees = 9

Distance b/w trees = 2.5 meters

Number of trees between 1st and 9th tree = 9 – 1 = 8

Total distance = distance between two trees * total number of trees

= 2.5 * 8 = 20 meters

Answer: **Distance between 1st and 9th tree = 20 Meters**