A boy’s height is 3 1/2 feet. A giraffe’s height is three times that of the boy’s height. How many inches taller is the giraffe than the boy?

Question

A boy’s height is 3 1/2 feet.  A giraffe’s height is three times that of the boy’s height.  How many inches taller is the giraffe than the boy?
(1 foot = 12 inches)

mathhelper · Accepted Answer

boys' height = 3 1/2 ft = 42 inches giraffe = 3(42) or 126 inches difference = 126-42 = 84 inches How did you possible get 54 ?

Tai M · Answer

MY TEACHER GAVE ME A 90 BECAUSE I THOUGHT IT WAS 54IN BUT SHE SAID IT IS 84IN CAN SOMEONE EXPLAIN