The fourth grade students participate in interest group activities. There are 35 people in the art group, twice as many people in the calligraphy group as the art group, and 10 fewer people in the composition group than the calligraphy group. How many people are there in the composition group?
四年级学生参加兴趣小组活动，美术组35人，书法组的人数是美术组的2倍，作文组比书法组少10人．作文组有多少人？
<gadget id="calculator">35 * 2</gadget>
<output>70</output>

<gadget id="calculator">70 - 10</gadget>
<output>60</output>

<result>60</result>