设苹果每斤x元,粒每斤y元,香蕉每斤z元.
10x+4y+6z=43,(1)
3x+6y+5z=26.5,(2)
(2)*2:6x+12y+10z=53,(3)
(3)+(1):16x+16y+16z=96,x+y+z=96/16=6
所以各一斤要6元.