A tree is standing by the side of a building 2/5 of the height of the tree is above the building. The building is 9 meter high, 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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