Xiaoyue and her mother went to the supermarket to buy things together. The first time they bought 2 boxes of peanut candy and 1 piece of chocolate, the total cost was 56 yuan; the second time they bought 4 boxes of peanut candy and 6 pieces of chocolate, the total cost was 160 yuan. So how much is 1 piece of chocolate?
小悦和妈妈一起去超市买东西，第一次买了2盒花生糖和1块巧克力，共花费56元；第二次买了4盒花生糖和6块巧克力共花费160元．那么1块巧克力多少元．
<gadget id="calculator">48 / 4</gadget>
<output>12</output>

<result>12</result>