The average score of the mathematics test in class 61 was 87.26. When reviewing the test paper, it was found that Xiao Ming's score of 98 was mistakenly calculated as 89. After recalculation, the average score of this class was 87.44. How many students are there in this class? ．
六1班统计数学考试成绩，平均成绩为87.26分，复查试卷时，发现小明的成绩98分误登为89分计算，经重新计算后，该班平均成绩是87.44分，该班有多少名学生．
<gadget id="calculator">98 - 89</gadget>
<output>9</output>

<gadget id="calculator">87.44 - 87.26</gadget>
<output>0.18</output>

<gadget id="calculator">9 / 0.18</gadget>
<output>50</output>

<result>50</result>