The water consumption of Xiaohong’s family last month was 17.5 tons, and the price per ton of water was 3.6 yuan. There are 4 people in Xiaohong’s family. How much is the average water fee per person?
小红家上月的用水量是17.5吨，每吨水的价格是3.6元，小红家有4人，平均每人需要支出水费多少元？
<gadget id="calculator">17.5 / 4</gadget>
<output>4.375</output>

<gadget id="calculator">3.6 * 4.375</gadget>
<output>15.75</output>

<result>15.75</result>