Answer:
Hence, the length of board is:
6.5 feet
Explanation:
Merry and pippin were working on a project in carpentry class.
They needed to cut 4 lengths of 1 5/8 feet from a board.
That means each of the piece is of length 1 5/8 feet which could be written in fraction as:

Hence, the otal length of the board is addition of length of each board.
i.e.

Hence, the length of board is:
6.5 feet