There are 8 mango trees in a straight line. The distance between each mango tree with other is 3 metres. What is the distance between the first and the eighth tree?
24 m
21m
30 m
27 m
Explanation:
Number of trees = 8
Number of intervals between 1st and 8th tree = 8 - 1 = 7
Distance between two neighboring trees = 3m
Distance between 1st and 8th tree=7×3=21m.