Question

An oak tree is 120 feet taller than the adjacent house. If the tree is also two and a half times the height of the house, how tall is the house? Choices for the height of the house 70, 80, 90

Answer 1

Let height of house be x.

Oak tree = 120 + x

Also given,

Oak tree = 2.5x

120 + x = 2.5x

1.5x = 120

0.3x = 24

3x = 240

x = 80

Hence, the height of the house is 80 ft.