AMC 8 2002 Problem 12

AMC8 2002 年第 12 题

概率★★☆☆☆

A board game spinner is divided into three regions labeled

A

B

and

C

. The probability of the arrow stopping on region

A

is $1/3$ and on region

B

is $1/2$. The probability of the arrow stopping on region

C

is:

一种棋盘游戏的转盘分成 3 个区域，标记为 A，B 和 C。已知箭头停在区域 A 的概率为，停在区域 B 的概率为，则箭头停在区域 C 的概率为 Problem 13 For his birthday, Bert gets a box that holds 125 jellybeans when filled to capacity. A few weeks later, Carrie gets a larger box full of jellybeans. Her box is twice as high, twice as wide and twice as long as Bert's. Approximately, how many jellybeans did Carrie get? Bert 的生日礼物是一个装满 125 颗果冻豆的盒子。几周后，Carrie 得到了一个更大的装满果冻豆的盒子。她的箱子是 Bert 的两倍高、两倍宽、两倍长。那么 Carrie 大概得到了多少颗果冻豆？

A. $\displaystyle \frac{1}{12}$
B. $\displaystyle \frac{1}{6}$
C. $\displaystyle \frac{1}{5}$
D. $\displaystyle \frac{1}{3}$
E. $\displaystyle \frac{2}{5}$

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