There are 35 sixth-grade students in the chorus team and 43 in the dance team. The ratio of the number of these two teams to the total number of sixth-grade students is 2:5. How many students are there in the sixth grade?
六年级同学参加合唱队的有35人，参加舞蹈队的有43人，这两个队的人数和六年级学生总人数的比是2：5，六年级有学生多少人？
<gadget id="calculator">35 + 43</gadget>
<output>78</output>

<gadget id="calculator">78 / 2</gadget>
<output>39</output>

<gadget id="calculator">39 * 5</gadget>
<output>195</output>

<result>195</result>