Aunt Zhang’s family used 8 tons of water last month, and the water bill was 12.8 yuan. Grandma Li’s house used 10 tons of water last month. How much was the water bill for Grandma Li’s house last month?
张大妈家上个月用了8吨水，水费是12.8元．李奶奶家上个月用了10吨水，李奶奶家上个月的水费是多少钱？
<gadget id="calculator">12.8 / 8</gadget>
<output>1.6</output>

<gadget id="calculator">1.6 * 10</gadget>
<output>16</output>

<result>16</result>