Question

A building with a height of 40 ft casts a shadow that is 16ft long. A person standing next to the building casts a shadow that is 2ft long. How tall is the person?

Answer 1

ratio:
40ft / 16ft = 2,5

soo....
x / 2ft = 2,5

answer:
x = 5ft

Answer 2

16ft long shadow of a building when the building true height is 40 ft
1 ft long shadow of a building when the building true height is 40/16 ft
2 ft long shadow of a person when the building true height is (40x2)/16 = 5ft (ans)