A woman is 5 ft tall and her shadow is 4 ft long. A nearby tree has a shadow 30 ft long. How tall is the tree?
A.
37.5 ft
B.
24 ft
C.
39 ft
D.
31 ft
Using the proportion:
woman's height / woman's shadow length = tree's height / tree's shadow length
5 / 4 = x / 30
Cross-multiplying:
4x = 150
x = 37.5
Therefore, the tree is 37.5 ft tall.
Answer: A. 37.5 ft