设一级茶叶x千克，那么二级茶叶的质量0.5x24.8×12.5%×(1-1/3)x+16×12.5%×0.5x=46024.8×0.125×2/3x+16×0.125×0.5x=4603.1×2/3x+x=4606.2x+3x=460×39.2x=460×3x=150运到的茶叶共x+x/2=150+150/2=150+75=225千克
