20÷(20+80),
=20÷100,
=20%;
答:乙数是甲数的20%.
故答案为:20.
甲、乙两数的差是80,乙数是20,乙数是甲数的_%.
甲、乙两数的差是80,乙数是20,乙数是甲数的______%.
数学人气:428 ℃时间:2019-08-21 00:00:57
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