Question

At a certain time of day, a 30-foot building casts a 10 foot shadow. How tall is a person who casts a 2 foot shadow? A. 4 feet B. 5 feet C. 6 feet D. 7 feet

Answer 1

The answer is 6 feet

Answer 2

6 ft

Explanation:

We can use ratios to solve

30 ft tall x ft tall

------------------ = ------------------

10 ft shadow 2 ft shadow

Using cross products

30 * 2 = 10x

60 = 10x

Divide by 10

60/10 = 10x/10

6 =x