By increasing the selling price of a good by 10%, a seller can make a profit of 32%. what profit percentage can he make if
1)he does not increase the selling price?
2)he increase the selling price by 20% instead of 10%?
比埋步驟呀,,plz!!!!!!!!!!!!!!!!!
真係好急嫁!hope you can help me,plz!!!!
thx!!!
F.1 MATHS題 20 marks急!plz help!
2010-07-21 10:54 pm
回答 (2)
2010-07-21 11:03 pm
✔ 最佳答案
1)Let the cost be $x and selling price be $y
By increasing the selling price of a good by 10%, a seller can make a profit of 32%
[(1+10%)y-x]/x*100%=32%
(1.1y-x)/x=0.32
1.1y-x=0.32x
1.32x=1.1y
y=1.2x...(*)
If he does not increase the selling price,
profit%=(y-x)/x*100%=(1.2x-x)/x*100%=20%
2)
profit%
=[(1+20%)y-x]/x*100%
=(1.2y-x)/x*100%
=(1.2(1.2x)-x)/x*100%
=(1.44x-x)/x*100%
=44%
收錄日期: 2021-04-15 17:30:50
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