My aunt bought 3.5 kilograms of rice and 5.5 kilograms of flour from the supermarket. The total cost was 38.7 yuan, 3.2 yuan per kilogram of rice, how much is it per kilogram of flour?
阿姨从超市买了3.5千克大米和5.5千克面粉，一共用了38.7元，每千克大米3.2元，每千克面粉多少元？
<gadget id="calculator">3.2 * 3.5</gadget>
<output>11.2</output>

<gadget id="calculator">38.7 - 11.2</gadget>
<output>27.5</output>

<gadget id="calculator">27.5 / 5.5</gadget>
<output>5</output>

<result>5</result>