把甲車間人數(shù)的12.5%調(diào)到乙車間,甲、乙兩車間人數(shù)相等.原來甲車間人數(shù)比乙車間多________%.
33.3
分析:把甲車間人數(shù)看作單位“1”,依據(jù)題意:甲車間人數(shù)的12.5%調(diào)到乙車間,甲、乙兩車間人數(shù)相等可得:甲車間剩余原有人數(shù)的1-12.5%=87.5%,也就是現(xiàn)在乙車間人數(shù)占原來甲車間人數(shù)的分率,先求出原來乙車間人數(shù)占甲車間人數(shù)的分率,再求出原來甲車間人數(shù)比乙車間人數(shù)多的分率,最后除以乙車間人數(shù)占的分率即可解答.
解答:[1-(1-12.5%-12.5%)]÷(1-12.5%-12.5%),
=[1-75%]÷75%,
=25%÷75%,
≈33.3%,
答:原來甲車間人數(shù)比乙車間多33.3%.
故答案為:33.3.
點評:明確標(biāo)準(zhǔn)量,并找出乙車間人數(shù)與標(biāo)準(zhǔn)量的關(guān)系,是解答本題的關(guān)鍵.