The ratio of the number of boys and girls in class 6 and 2 is 6:5, and there are 30 girls, how many boys are there?
六2班男女生人数的比是6：5，女生有30人，则男生有多少人？
<gadget id="calculator">30 / 5</gadget>
<output>6</output>

<gadget id="calculator">6 * 6</gadget>
<output>36</output>

<result>36</result>