有含盐8%的盐水40克,要使盐水含盐20%,则需加盐多少克?:Y.|5o(^)j(B4o)N
算式:提示*k)N;R1p7v(p8].C:Y.|5o(^)j(B4o)N
所以加盐8B3W1}5t;i)m(l0L.k0Q8F(O3?-T克。:Y.|5o(^)j(B4o)N