AMC 8 2014 Problem 12

AMC8 2014 年第 12

概率★★★☆☆
A magazine printed photos of three celebrities along with three photos of the celebrities as babies. The baby pictures did not identify the celebrities. Readers were asked to match each celebrity with the correct baby pictures. What is the probability that a reader guessing at random will match all three correctly as a fraction?
一家杂志社打印了 3 位名人的照片,以及这 3 位名人婴儿时的照片。从婴儿照片上无法识别出对应的名人。杂志社要求读者把每位名人的照片和对应的婴儿照片正确匹配。某个读者随机匹配了这些照片,那么他把这 3 个名人都正确匹配的概率是多少?
  1. A.19\displaystyle \frac{1}{9}
  2. B.16\displaystyle \frac{1}{6}
  3. C.14\displaystyle \frac{1}{4}
  4. D.13\displaystyle \frac{1}{3}
  5. E.12\displaystyle \frac{1}{2}

正确答案 · Correct Answer

B

解析 · Solution

解析整理中

继续练习

真题版权归属 MAA(AMC)。本站仅供学习用途。版权方如有异议,请联系本站予以下架。

Problems © MAA (AMC). This site is for study purposes only. Rightsholders may contact us for removal.