The cafeteria has soared a group of people, and the cooking utensils can only be shared. Each person can use a rice bowl, and the vegetable bowl can only be used by two people. Three people share one soup bowl, 55 bowls are enough. Please do the math, how many new guests have come?
食堂猛增一群人，炊具只能合伙用．每人可用一饭碗，菜碗只能两人用．三人合用一汤碗，55只碗正够分．请你帮助算一算，共来多少新客人？
<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>