Question

老师告诉全班：“想一个数，给它加 $1$ ，再把结果加倍。把答案给你的搭档。搭档从得到的数中减去 $1$ ，再把结果加倍，得到自己的答案。”Ben 想的是 $6$ ，并把他的答案给 Sue。Sue 的答案应是多少？

A teacher tells the class, "Think of a number, add $1$ to it, and double the result. Give the answer to your partner. Partner, subtract $1$ from the number you are given and double the result to get your answer." Ben thinks of $6,$ and gives his answer to Sue. What should Sue's answer be?

$18$

$24$

$26$

$27$

$30$

答案：C

知识点：运算顺序

难度评级：450

解答：

Ben 计算 $(6 + 1) \times 2 = 14$ ，并把 $14$ 给 Sue。

Sue 计算 $(14 - 1) \times 2 = 26$ 。

所以正确答案是 C。

Ben computes $(6 + 1) \times 2 = 14$ and gives $14$ to Sue.

Sue computes $(14 - 1) \times 2 = 26$ .

Thus, the correct answer is C .

1995 AMC 8 第 4 题

答案：C

难度评级：450

解答：

其他年份的第 4 题