甲数与乙数的比是5:4,甲数比乙数多百分之几,乙数比甲数少百分之几

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  • 由“甲数与乙数的比是5:4”可知,

    甲=5/4乙;

    则甲数比乙数多 (甲-乙)÷乙×100%

    =(5/4乙-乙)÷乙×100%

    =1/4乙÷乙×100%

    =25%

    乙数比甲数少 (甲-乙)÷甲×100%

    =(5/4乙-乙)÷5/4乙×100%

    =1/4乙÷5/4乙×100%

    =1/4÷5/4×100%

    =20%

    答:甲数比乙数多25%;乙数比甲数少20%