The sixth grade students went to participate in the competition. The number of students participating in the competition accounted for 1/3 of the total number of sixth graders. Later, 10 people participated. At this time, the ratio of the number of students who participated to the number of students who did not participate was 2:3. How many students in the sixth grade people?
六年级学生去参加比赛，参赛的学生占六年级总人数的(1/3)，后来又有10人参加，这时参加的同学与没参加的人数比是2：3，六年级一共有多少人？
<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(2/5) - (1/3)</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">10 / (1/15)</gadget>
<output>150</output>

<result>150</result>