There are 42 students in class one of the fifth grade. In a math competition, the average score of the whole class is 92 points. It is known that the average score of girls is 92.5 points and the average score of boys is 91.45 points. How many more girls than boys?
五年级一班有42人，在一次数学竞赛中，全班的平均成绩是92分，已知女生的平均分是92.5分，男生的平均分是91.45分．女生比男生多几人？
<gadget id="calculator">92 * 42</gadget>
<output>3_864</output>

<gadget id="calculator">91.45 * 42</gadget>
<output>3_840.9</output>

<gadget id="calculator">3_864 - 3_840.9</gadget>
<output>23.1</output>

<gadget id="calculator">92.5 - 91.45</gadget>
<output>1.05</output>

<gadget id="calculator">23.1 / 1.05</gadget>
<output>22</output>

<gadget id="calculator">42 - 22</gadget>
<output>20</output>

<gadget id="calculator">22 - 20</gadget>
<output>2</output>

<result>2</result>