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16 January, 13:48

A 13ft board is to be cut into three pieces, two equal length ones and the third 9in shorter than each of the other two. If cutting does not result in any length being lost how long are the piecies

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  1. 16 January, 14:32
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    The pieces are 55 inches, 55 inches and 46 inches long

    Step-by-step explanation:

    A 13ft board is to be cut into three pieces consisting of two equal length ones. The third one is 9in shorter than each of the other two.

    Let us first convert the length of the board to inches:

    1 ft = 12 inches

    13 ft = 12 * 13 = 156 inches

    Let the length of each of the other two pieces be x.

    Therefore, the length of the third piece is (x - 9)

    Therefore, the sum of the lengths of the three pieces is equal to 156 inches. This means that:

    x + x + (x - 9) = 156

    x + x + x - 9 = 156

    => 3x = 156 + 9

    3x = 165

    x = 165 / 3 = 55 inches

    Each of the first two pieces are 55 inches long.

    The length of the third piece will be:

    55 - 9 = 46 inches

    The pieces are 55 inches, 55 inches and 46 inches long.
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