A tree is standing behind a building .2/5 of the height of the tree can be seen and the rest is hidden by the building. The building is 9metres high . what is the height of the tree?
Answers
Answered by
10
let the length of the tree is x .
so the equation is
(x-2x/5)=9
or, 5x-2x=45 ...(multiply both side with 5)
or, 3x=45
so , x=15
ans-the height of the tree is 15m
so the equation is
(x-2x/5)=9
or, 5x-2x=45 ...(multiply both side with 5)
or, 3x=45
so , x=15
ans-the height of the tree is 15m
Answered by
8
Answer:
15 metres
Step-by-step explanation:
Let the height of the Let the height of the tree = y meters
The part of the tree that is visible = 2/5 × y
the part which is hidden by the building = y - 2/5 × y = y × [ 1 - 2/5]
= 3/5 × y
the part hidden of the tree = the height of the building
3/5 × y = 9 meters
y = 9 × 5/3 = 15 meters
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