商店有一种DVD播放机,如果按原价打八折出售可获利50元;如果按原价打九五折出售...

商店将物品提价百分之40，然后再打9折出售，结果还能获利195，问物品原价是多少

设物品原价是X，则有 X（1 40%）*90% -195=X，   1。4*0。9X-X=195，                                                                           1。 26X-X=195，                                                                         0。26X=195。                                                                         X=19...全部

  设物品原价是X，则有 X（1 40%）*90% -195=X，   1。4*0。9X-X=195，                                                                           1。
  26X-X=195，                                                                         0。26X=195。                                                                         X=195/0。
  26                                                                   X=750物品的原价是750元。收起