A person with a height of 7 feet is standing 70 feet from a street light. If the person's shadow is 35 feet, determine the height of the street light in feet.

Question

A person with a height of 7 feet is standing 70 feet from a street light. If the person's shadow is 35 feet, determine the height of the street light in feet. (Please do not enter the units in your answer.) 

Answer 1

h/(35+70) = 7/35

h/105 = 7/35

h= 105(7)/35 = 21