A tree is standing behind a building . 2/5 of the tree is seen . Rest hidden by building . Building is 9 Meters high. Find height of tree

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Solution

Let the height of the tree = H meters

The part of the tree that is visible = 2/5 * H

the part which is hidden by the building = H - 2/5 * H = H * [ 1 - 2/5 ]
= 3/5 * H

the part hidden of the tree = the height of the building
3/5 * H = 9 meters
H = 9 * 5 / 3 = 15 meters

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