When counting the math scores of a certain class, the average score was 80 points. During the review, it was found that student Xiaohua's score was not 85 points, but 75 points; student Wang Xiaoming's score was not 88 points, but 73 points. After recalculation, the average score of this class is 79.5 points, how many students are there in this class.
某班统计数学成绩时，平均成绩为80分，复查时，发现学生小华的成绩不是85分，而应是75分；学生王小明的成绩不是88分，而是73分．重新计算后，该班平均成绩为79.5分，该班有学生多少人．
<gadget id="calculator">85 - 75</gadget>
<output>10</output>

<gadget id="calculator">88 - 73</gadget>
<output>15</output>

<gadget id="calculator">10 + 15</gadget>
<output>25</output>

<gadget id="calculator">80 - 79.5</gadget>
<output>0.5</output>

<gadget id="calculator">25 / 0.5</gadget>
<output>50</output>

<result>50</result>