设运进苹果x吨,则梨为x+3.6吨40%x=1/3×(x+3.6)3×40%x=x+3.61.2x=x+3.60.2x=3.6x=18吨
解:设苹果重X吨,梨重X+3.6吨40%X=(1/3)(X+3.6)0.4X=(1/3)X+1.2(1/15)X=1.2X=18
苹果:梨=5:63.6/(6-5)=3.63.6*5=18