Percentage問題,入黎望下!

知識問題|marked price?
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發問者：keraope ( 小學級 5 級) 發問時間：2007-04-13 23:24:45 解決時間：2007-04-15 23:48:30 解答贈點：5 ( 共有 0 人贊助 ) 回答：1 評論：0 意見：0[ 檢舉 ]網友正面評價83%共有 6 人評價 the marked price of a toy is $120 and the percentage profit is 60%. If the toy is sold at a discount of 20%,the profit is????

同埋我想問咩係marked price??=_='' 2007-04-13 23:56:43 補充answer is $21 最佳解答發問者自選
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回答者：myisland8132 ( 知識長 ) 回答時間：2007-04-13 23:53:03[ 檢舉 ] the marked price of a toy is $120 and the percentage profit is 60%. If the toy is sold at a discount of 20%,the profit is????
SOLUTION
marked price 即標價﹐賣給顧客的價錢。
Since when sell at $120 profit is 60%.
So the cost of a toy is
120/(1+60%)
= $ 75
Now the toy is sold at a discount of 20%
Then its marked price becomes
=120*(1-20%)
=120*0.8
=96
the profit
=96-75
=$ 212007-04-13 23:57:30 補充你可以想成cost 是x

則x(1+60%)=120

所以

x=120/(1+60%) [ 快速連結 ]其它回答( 0 ) | 意見( 0 ) | 評論( 0 )發問者評價
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