甲仓库存粮104吨，乙仓库存粮140吨，要使甲仓库的存粮是乙仓库的3倍，那么必须从乙仓库运出多少吨放入甲仓库？6f8p-R.A1S;e3W+Y(I0u3Q+d
算式：提示1r(j.k/U,J:b*}6U9D'}+S1w-w0U6f8p-R.A1S;e3W+Y(I0u3Q+d
答：必须从乙仓库运出2H.R'n3H4^2W:Y5r吨放入甲仓库。6f8p-R.A1S;e3W+Y(I0u3Q+d