Xiaoli's family paid 30 yuan for water in 6 months, so how much is the water fee for 8 months?
小丽家6个月交了30元水费，照这样8个月交水费多少元．
<gadget id="calculator">30 / 6</gadget>
<output>5</output>

<gadget id="calculator">5 * 8</gadget>
<output>40</output>

<result>40</result>