雞兔同籠的公式:
解法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)
解法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)
解法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)
解法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)
解法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)
解法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)

