A boy who is 7 feet tall can cast a shadow that is 21 feet long on the ground. How tall (in feet) is a man who can cast a shadow that is 15 feet long?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 5.
Calculations:
According to the question,
Let the height of the man be x.
⇒ 7/21 = x/15
⇒ x = (7 × 15)/21
⇒ x = 5