Teacher Chen spent 36 yuan to buy 3 boxes of soap, 4 yuan each. How much is an average bar of soap?
陈老师花了36元买了3盒肥皂，每盒4块．平均每块肥皂多少钱？
<gadget id="calculator">36 / 3 / 4</gadget>
<output>3</output>

<result>3</result>