The experimental primary school wants to organize students to participate in the "Young Ying" Cup composition competition. Among them, there are 10 more female students than male students. The result of the selection is that 15 male students won awards, and 30% of female students won awards. The total number of known awardees is 27. Ask How many students participated in the selection?
实验小学要组织同学参加"雏赢"杯作文比赛，其中女同学比男同学多10人，评选结果是男同学15人获奖，女同学30%获奖，已知获奖的总人数共27人，问参加选拔的同学共有多少人？
<gadget id="calculator">27 - 15</gadget>
<output>12</output>

<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">12 / (3/10)</gadget>
<output>40</output>

<gadget id="calculator">40 - 10</gadget>
<output>30</output>

<gadget id="calculator">40 + 30</gadget>
<output>70</output>

<result>70</result>