Mary sells an electric heater at $1380 and the profit per cent is 15%.
b) If she reduces the selling price by 55%,find her loss per cent.
S.1 Maths
2010-11-21 7:10 pm
回答 (1)
2010-11-21 7:20 pm
✔ 最佳答案
The cost(成本) of the electric heater:$1380÷(1+15%)
=$1200
The selling price(售價) of the electric heater:
$1380 X 55%
=759
(1200-759)/1200 X 100%
=36.75%
∴Her loss 36.75%.
參考: WingGordon
收錄日期: 2021-05-01 23:04:05
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https://hk.answers.yahoo.com/question/index?qid=20101121000051KK00376