Question 1138530
{{{48/n}}} pesos per schoolmate as done


{{{48/(n+3)=(1/2)(48/n)}}} if three more schoolmates participated


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{{{48/(n+3)=24/n}}}

{{{48n=24(n+3)}}}

{{{48n=24n+72}}}

{{{24n=72}}}

{{{highlight(n=3)}}}
Three friends bought the gift.