a tree is standing behind a building.2 by 5 of the height of the tree can be seen and the rest the building.the building is 9 M height .what is the height of the tree ?
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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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