A, B, and C go on a trip. A buys 3 bottles of Coke, B buys the same 2 bottles of Coke, and C does not. The three drank 5 bottles of Coke on average. In order to cover the expenses on average, C took out 5 yuan, how much should be paid to A?
甲、乙、丙三人去旅游，甲买了3瓶可乐，乙买了同样的2瓶可乐，丙没有买．三人平均喝完了5瓶可乐，为了平均负担费用，丙拿出了5元钱，应给甲多少元？
<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">5 / (5/3)</gadget>
<output>3</output>

<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">9 - 5</gadget>
<output>4</output>

<result>4</result>