Aunt Zhang's family used 8 tons of water in May and paid a total water fee of 15.2 yuan. Grandma Li’s family used 10 tons of water in May. How much does Grandma Li’s family have to pay for water in May? (solution by equation)
张大妈家五月份用了8t水，共交水费15.2元．李奶奶家五月份用了10t水，李奶奶家五月份要交水费多少元？(用方程解)
<gadget id="calculator">10 / 8</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">15.2 * (5/4)</gadget>
<output>19</output>

<result>19</result>