The number of boys (2/5) is equal to the number of girls (3/4). If there are 150 boys, what is the number of girls?
男生人数的(2/5)与女生人数的(3/4)相等，男生人数150人，女生人数是多少．
<gadget id="calculator">150 / 15</gadget>
<output>10</output>

<gadget id="calculator">10 * 8</gadget>
<output>80</output>

<result>80</result>