There are 84 triple-good students in Guangming Primary School. The number of triple-good students (3/4) is exactly the number of students in the whole school (3/40). How many students are there in this school?
光明小学有三好学生84人，三好学生人数的(3/4)正好是全校学生人数的(3/40)，这个学校共有学生多少人？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">3 / 40</gadget>
<output>3/40 = around 0.075</output>

<gadget id="calculator">(3/4) / (3/40)</gadget>
<output>10</output>

<gadget id="calculator">84 * 10</gadget>
<output>840</output>

<result>840</result>