Grandma Li’s family used 10 tons of water last month, and the water bill was 16 yuan. Aunt Zhang’s family used 8 tons of water. How much is the water bill? (Answer with proportional knowledge)
李奶奶家上个月用了10吨水，水费是16元，张大妈家用了8吨水，水费是多少元？(用比例知识解答)
<gadget id="calculator">16 / 10</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">(8/5) * 8</gadget>
<output>64/5 = around 12.8</output>

<result>64/5 = around 12.8</result>