A.110×40%=44 B.110×50%=55 C.110×60%=66 D.110
A.(9000÷3-500-1200-800)×10%=50(元) B.(9000÷3-500-800-800)×10%=90(元) C.(9000-500-1200-800)×10%=650(元) D.(9000-500-800-800)×10%=690(元)
A.(60+2.34)×17%=10.60 B.[60+2.34÷(1+17%)]×17%=10.54 C.60×17%=10.2 D.(60+2.34)÷(1+17%)×17%=9.06