雞兔同籠公式 雞兔同籠假設(shè)法
2023-11-20
更新時(shí)間:2023-11-20 03:27:03作者:佚名
1、公式1:(兔的腳數(shù) × 總只數(shù) - 總腳數(shù))÷(兔的腳數(shù) - 雞的腳數(shù))= 雞的只數(shù),總只數(shù) - 雞的只數(shù) = 兔的只數(shù)
2、公式2:(總腳數(shù) - 雞的腳數(shù) × 總只數(shù)) ÷ (兔的腳數(shù) - 雞的腳數(shù))= 兔的只數(shù),總只數(shù) - 兔的只數(shù) = 雞的只數(shù)
3、公式3:總腳數(shù) ÷ 2 - 總頭數(shù) = 兔的只數(shù),總只數(shù) -兔的只數(shù) = 雞的只數(shù)
4、公式4:兔總只數(shù) = (雞兔總腳數(shù) - 2 × 雞兔總只數(shù)) ÷ 2,雞的只數(shù) = 雞兔總只數(shù) - 兔總只數(shù)
5、公式5:雞的只數(shù) = (4 × 雞兔總只數(shù) - 雞兔總腳數(shù)) ÷ 2,兔的只數(shù) = 雞兔總只數(shù)-雞的只數(shù),公式6:4× + 2(總數(shù)x)=總腳數(shù) (x = 兔,總數(shù) - x = 雞數(shù),用于方程)