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)

2 answers

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