Teacher Zhang brought a sum of money. He originally planned to buy only footballs, but he could buy 20 of them. As a result, the money was used to buy 12 footballs and 15 basketballs. It is known that each basketball is 64 yuan, how much does each football cost?
张老师带了一笔钱，原打算只买足球，正好可以买20只．结果用这笔钱买了12只足球和15只篮球．已知每只篮球64元，每只足球需要多少钱？
<gadget id="calculator">20 - 12</gadget>
<output>8</output>

<gadget id="calculator">15 / 8</gadget>
<output>15/8 = around 1.875</output>

<gadget id="calculator">64 * (15/8)</gadget>
<output>120</output>

<result>120</result>