来自汤金宽的问题
甲数是20,比乙数少20%,乙数是______,乙数比甲数多______%.
甲数是20,比乙数少20%,乙数是______,乙数比甲数多______%.
1回答
2020-05-1300:34
甲数是20,比乙数少20%,乙数是______,乙数比甲数多______%.
甲数是20,比乙数少20%,乙数是______,乙数比甲数多______%.
(1)20÷(1-20%)
=20÷80%
=25;
答:乙数是25.
(25-20)÷20
=5÷20
=25%;
答:乙数比甲数多25%.
故答案为:25,25.