Lao Wang's family has five members. The water consumption last month was 20.5 tons, and the price of each ton of water is 2.5 yuan. How much is the average water fee per person in Lao Wang's family?
老王家有五口人，上个月的用水量是20.5吨，每吨水的价格是2.5元．老王家平均每人的水费是多少元？
<gadget id="calculator">2.5 / 5</gadget>
<output>0.5</output>

<gadget id="calculator">20.5 * 0.5</gadget>
<output>10.25</output>

<result>10.25</result>