Challenge 13:
The average height of a 10-year old boy is 4 feet 6 inches tall. The average 10-year old girl is 5 feet tall. If 10-year old Steven is 5 inches taller than Susan and Susan is 6 inches under the average height for a 10-year old girl, how tall is each?
Answer
Steven is 4 feet 11 inches tall.
Susan is 4 feet 6 inches tall.