Question

A tree is standing behind a building 2/3 of the height of the tree can be seen and the rest is hidden by building . the building is 9 meters high . what is the length of the tree

Answer 1

Let height of tree be x
2/3of x =9
therefore x=27/2=13.5
13.5 is the answer

Answer 2

let the tree hight = h meters
building hight = 9 meters
a/c
h-2/3*h=9
h(1-2/3)=9
h(1/3)=9
h=9*3
h=27
hence the hight of tree= 27 meters