甲,乙仓库吨数比为四比三,甲仓库取12吨到乙,则甲乙两仓库吨数为2:3,各有多少吨?

1个回答

  • 1)设甲=4x, 乙=3x

    => (4x-12)/2=(3x+12)/3

    =>12x-36=6x+24

    =>6x=60

    =>x=10

    甲=40, 乙=30

    2)设女=x, 男=y,

    =>7x/5=8y/5

    =>x/y=8/7

    y(%)=7/15*100%=46.67%

    x(%)=100%-46.67%=53.33%

    3)1人1个饭碗,2人1个菜碗,3人一个汤碗

    取最小公倍数=6人6个饭碗,3个菜碗,2个汤碗=6人11个碗

    110个碗/11=10 (60人!)