During a dinner party, the restaurant provides 3 kinds of drinks, and there are 65 bottles in total. On average, 2 people drink a bottle of A drink, 3 people drink B drink, and 4 people drink C drink. How many people participated in the dinner.
一次会餐中，餐厅提供了3种饮料，统计共有65瓶，平均没2人饮用一瓶A饮料，3人用B饮料，4人用C饮料，参加会餐的有多少人．
<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 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/2) + (1/3) + (1/4)</gadget>
<output>13/12 = around 1.083333</output>

<gadget id="calculator">65 / (13/12)</gadget>
<output>60</output>

<result>60</result>