Some students in the sixth grade went to the countryside for a picnic. Teacher Chen asked to bring 55 bowls according to the standard of "one rice bowl for one person, one vegetable bowl for two people, and one soup bowl for three people". How many students went to this picnic?
六年级部分同学去郊外野餐，陈老师要求按"一人一个饭碗，两人一个菜碗，三人一个汤碗"的标准带55个碗．这次野餐活动去了多少名同学．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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

<gadget id="calculator">1 + (1/2) + (1/3)</gadget>
<output>11/6 = around 1.833333</output>

<gadget id="calculator">55 / (11/6)</gadget>
<output>30</output>

<result>30</result>