Question

Ben and Jerry’s sells 3 times more ice cream cones ($2) than shakes ($9). If last month’s sales totaled $9,600, how many of each were sold?

Answer 1

It is given that the sales of ice cream is three times as shakes.

Let x be the number of ice creams and y be the number of shakes,

So x=3y.

Also the total sales if ice cream is $2 and shake is $9 is $9600 so it follows:

$\begin{gathered} 2x+9y=9600 \\ 2\times3y+9y=9600 \\ 15y=9600 \\ y=640 \end{gathered}$

Since x=3y so it follows that x=1920.

So Number of shakes sold is 640 and number of ice cream cones sold is 1920.