Mr. Wang's family paid a total of 720 yuan in utility bills in the second half of last year. If the average monthly electricity bill of his family is 88 yuan, how much is the average monthly water bill?
王东家去年下半年共缴水电费720元．如果他家平均每月的电费是88元，平均每月的水费是多少元？
<gadget id="calculator">88 * 6</gadget>
<output>528</output>

<gadget id="calculator">720 - 528</gadget>
<output>192</output>

<gadget id="calculator">192 / 6</gadget>
<output>32</output>

<result>32</result>