Question

A lighthouse casts a 128-ft shadow. A nearby lamppost that measures 5

feet casts an 8-foot shadow. What is the height of the light house, rounded
to the nearest foot? *

Answer 1

80 ft

Explanation:

Let the height of the light house be x feet.

`\therefore \: (128)/(8) = (x)/(5) \\ \\ x = (128 * 5)/(8) \\ \\ x = (640)/(8) \\ \\ x = 80 \: feet`