Given length of the long board = 18 feet
Mr. Sheffo wants to make shelf with boards that are =
feet or
feet
So, the number of pieces he can cut from the long board are =
=
=
=
boards
As the number can be a whole number, so 14 boards is the answer.
Two such numbers are: 50 and 63
The only one is 40 6 12 18 24,30,36,42