The water supply company stipulates: "When the water used by each person does not exceed 5 tons per month, the fee is 1.6 yuan per ton, and the part that exceeds 5 tons is charged at 5 yuan per ton." According to this calculation, the three members of Wang Yue's family share 25 yuan of water a month. Ton, how much should be paid for water?
自来水公司规定："每人每月用水不超过5吨时，按每吨1.6元收费，超过5吨的部分按每吨5元收费．"照这样计算，王月家3口人，一个月共用水25吨，应交水费多少元？
<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<gadget id="calculator">25 - 15</gadget>
<output>10</output>

<gadget id="calculator">10 * 5</gadget>
<output>50</output>

<gadget id="calculator">3 * 5 * 1.6</gadget>
<output>24</output>

<gadget id="calculator">50 + 24</gadget>
<output>74</output>

<result>74</result>