The school bought 10 boxes of colored chalks and 13 boxes of white chalks, and paid 64.5 yuan in total. Each box of colored chalks was 3.2 yuan. How much is each box of white chalks?
学校买来10盒彩色粉笔和13盒白粉笔，共付64.5元，每盒彩色粉笔3.2元，每盒白粉笔多少元？
<gadget id="calculator">64.5 - 32</gadget>
<output>32.5</output>

<gadget id="calculator">32.5 / 10</gadget>
<output>3.25</output>

<result>3.25</result>