AMC 8 2024 Problem 16

AMC8 2024 年第 16

鸽巢原理与策略★★★☆☆
Minh enters the numbers 1 through 81 into the cells of a 9 × 9 grid in some order. She calculates the product of the numbers in each row and column. What is the least number of rows and columns that could have a product divisible by 3?
Minh按照某种顺序将数字1到81填入一个9×9的网格中,并计算出每行每列的数字之积。请问至少有多少行和列的乘积可以被3整除?
  1. A.8
  2. B.9
  3. C.10
  4. D.11
  5. E.12

正确答案 · Correct Answer

D

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.