Question

甲是乙的3分之5倍甲数和乙数的比是（ ）乙数是甲数的（ ）%

Answer 1

设乙数 = X

=>甲数 = (5/3) * X

甲数和乙数的比 = (5/3) * X :X = 5 :3

乙数是甲数的 = {X / [ (5/3) * X] } *100% = 60%