(1)A方案净现值=50000×(P/F,10%,1)+40000×(P/F,10%,2)4+30000×(P/F,10%,3)+20000×(P/F,10%,4)+20000×(P/F,10%,5)-120000=50000×0.909+40000×0.826+30000×0.751+20000×0.683+20000×0.621-120000=7100(元)(2)B方案净现值=32000×(P/A,10%,5)-120000=32000×3.791-120000=1312(元)(3)由于A方



