The average score of the mid-semester test in Class 5 and 2 is 86.8 points. The average score of 28 female students is 89.2 points, and the average score of male students is 84.7 points. How many male students are there?
五2班数学期中测试的平均分是86.8分，其中28名女同学的平均分是89.2分，男同学的平均分是84.7分，男同学有多少名．
<gadget id="calculator">89.2 * 28</gadget>
<output>2_497.6</output>

<gadget id="calculator">86.8 * 28</gadget>
<output>2_430.4</output>

<gadget id="calculator">2_497.6 - 2_430.4</gadget>
<output>67.2</output>

<gadget id="calculator">86.8 - 84.7</gadget>
<output>2.1</output>

<gadget id="calculator">67.2 / 2.1</gadget>
<output>32</output>

<result>32</result>