Maths problem: how to do (b), thanks?
回答 (1)
2020-11-19 7:22 pm
✔ 最佳答案
(a) N = 5n + 3(b) N = 6m + 4
∴ 5n + 3 = 6m + 4
参考 "中國餘數定理" 解法:
(5,6) = 1
1×6 ≡ 1 (mod 5)
5×5 ≡ 1 (mod 6)
∴ N = k ×(5×6) + 3×1×6 + 4×5×5
= 30k + 118
N 最小 28 = 5×5+3 = 4×6+4
此時有 6 人要分的話, 每人 4 片, 餘 4 片.
收錄日期: 2021-04-24 08:10:11
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20201119093905AAWR3I8