3. The cost of a calculator is $60,if the calculator is sold at its marked price, then the percentage profit is 20%.
(a) Find the marked price of the calculator.
(b) If the calculator is sold at 10% discount on the marked price , find the percentage profit or percentage loss.
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中五數學問題(英文) 有20點!!!
2007-10-06 2:39 am
回答 (4)
2007-10-06 2:53 am
✔ 最佳答案
a. The marked price= Cost X (1 + percentage profit)
= 60 X (1 + 20%)
= 60 X 1.2
= $72
b. New selling price
= Marked price X (1 - discount)
= 72 X (1 - 10%)
= 72 X 0.9
= $64.8
So, profit = 64.8 - 60 = $4.8
Therefore, percentage profit
= Profit / marked price X 100%
= 4.8/60 X 100%
= 8%
參考: Myself~~~
2007-10-06 3:32 am
(a) 60x(1+20%)
=60x1.2
=72
(b)72x(1-10%)
=72x90%
=64.8
(64.8-60)/60x100%
=4.8/60x100%
=+8%......................ok
=60x1.2
=72
(b)72x(1-10%)
=72x90%
=64.8
(64.8-60)/60x100%
=4.8/60x100%
=+8%......................ok
2007-10-06 3:01 am
(a) 60x(1+20%)
=60x1.2
=72
(b)72x(1-10%)
=72x90%
=64.8
(64.8-60)/60x100%
=4.8/60x100%
=+8%
如果我冇解錯的話,這應該是對的!!!
=60x1.2
=72
(b)72x(1-10%)
=72x90%
=64.8
(64.8-60)/60x100%
=4.8/60x100%
=+8%
如果我冇解錯的話,這應該是對的!!!
參考: 自己
2007-10-06 2:57 am
搏一搏
1.60*0.2+60=72
2.72-(72*0.1)=64.8 so it is percentage profit
1.60*0.2+60=72
2.72-(72*0.1)=64.8 so it is percentage profit
收錄日期: 2021-04-13 13:45:53
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071005000051KK02511