The sixth grade accounts for (5/6) of the whole school. Among them, there are 150 girls, accounting for the sixth grade (3/7). How many students are there in the sixth grade?
六年级占全校人数的(5/6)，其中有女生150人，占六年级的(3/7)，六年级有多多少人．
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">150 / (3/7)</gadget>
<output>350</output>

<result>350</result>