一家商店将某种型号的彩电先按原售价提高百分之40,然后在广告中写道:“大酬宾,八折优惠.”

1个回答

  • 设原售价为x元,根据题意列方程得

    (1+40%)x×80%-x=2700÷10

    1.4x×0.8-x=270

    1.12x-x=270

    0.12x=270

    x=2250

    答:每台彩电的原售价为2250元.