The ratio of the number of boys and girls in Class 1 is 5:6, and there are 30 girls, how many students are there in the class?
六一班男女生人数的比是5：6，且女生有30名，那么全班有多少名学生．
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">30 * (5/6)</gadget>
<output>25</output>

<gadget id="calculator">30 + 25</gadget>
<output>55</output>

<result>55</result>