Answer:
Difference = 5 meters
Step-by-step explanation:
Given that:
Length of shadow of building = 20 meter
Height of woman = 1.8 meters
Shadow length of woman = 2.4 meters
Height of building = x
Ratio of building's height to shadow = x : 20
Ratio of woman's height to shadow = 1.8 : 2.4
x : 20 :: 1.8 : 2.4
Product of mean = Product of extreme
20 * 1.8 = 2.4x
2.4x = 36
Dividing both sides by 2.4
[tex]\frac{2.4x}{2.4}=\frac{36}{2.4}\\x=15[/tex]
Difference in height and shadow = 20 - 15 = 5 meters
Hence,
Difference = 5 meters