Question

Ali、Bonnie、Carlo 和 Dianna 将一起开车去附近的主题公园。他们使用的车有四个座位：一个驾驶座、一个前排乘客座和两个后排座位。只有 Bonnie 和 Carlo 会开这辆车。有多少种可能的座位安排？

Ali, Bonnie, Carlo and Dianna are going to drive together to a nearby theme park. The car they are using has four seats: one driver’s seat, one front passenger seat and two back seats. Bonnie and Carlo are the only two who can drive the car. How many possible seating arrangements are there?

$2$

$4$

$6$

$12$

$24$

答案：D

知识点：有限制的排列乘法原理

难度评级：1230

解答：

驾驶座有 $2$ 种选择。另一个前排座位有 $3$ 种选择，第一个后排座位有 $2$ 种选择。

最后一个人必须坐最后一个座位，所以共有种座位安排。 $2 \cdot 3 \cdot 2 = 12$

所以正确答案是 D。

There are $2$ options for who sits in the driver's seat. There are $3$ options for the other front seat, and $2$ options for the first back seat.

The last person has to sit in the last seat, for a total of $2 \cdot 3 \cdot 2 = 12$ possible seating arrangements.

Thus, D is the correct answer.

2003 AMC 8 第 16 题

答案：D

难度评级：1230

解答：

其他年份的第 16 题