A.(90000-9000)×(1+17%)×17%=16110.9(元) B.90000×17%=15300(元) C.90000×(1+17%)×17%=17901(元) D.(90000-9000)×17%=13770(元)
A.(3.09+1.03)÷(1+3%)×3%=0.12(万元) B.(3.09+1.03-2.06)÷(1+3%)×3%=0.06(万元) C.(3.O9+1.03)×3%=0.12(万元) D.(3.09+1.02)÷(1-3%)×3%=0.13(万元)
A.117×17%=19.89(万元) B.(117+11.7)×17%=21.879(万元) C.117÷(1+17%)×17%=17(万元) D.(117+11.7)÷(1+17%)×17%=18.7(万元)