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    boat problem

    A boat costs x dollars, and this cost is to be shared equally by a group of people. In terms of x, how many dollars less will each person contribute if there are 4 people in the group instead of 3 ?
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    Quote Originally Posted by aeroflix View Post
    A boat costs x dollars, and this cost is to be shared equally by a group of people. In terms of x, how many dollars less will each person contribute if there are 4 people in the group instead of 3 ?
    If there are three people each pays \$\frac{x}{3}.

    If there are four people each pays \$\frac{x}{4}.


    The difference is

    \$\frac{x}{3} - \$\frac{x}{4}

     = \$\frac{4x}{12} - \$\frac{3x}{12}

     = \$\frac{x}{12}.
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    thanks so much!
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