數學題……好簡單

👨🏻‍🏫 學術台數學

用戶11772

2009-11-23 1:30 am

a computer game marked at$320 is sold at a discount of 40%.if the discount is 64% of the cost price,find the profit or loss per cent.

更新1:

解釋點解，要比條式我。答案係loss 4%

更新2:

點解要除？128 / 64% = $200

回答 (3)

用戶9112

2009-11-23 1:41 am

✔ 最佳答案

The discount = $320 * 40% = $128
This is 64% of the cost price, therefore cost price = $128 / 64% = $200
The selling price = $320 - $128 = $192
The loss is (200 - 192)/200 * 100% = 4%

2009-11-22 17:47:57 補充：
the discount is 64% of the cost price
cost price * 64% = $128
cost price = $128 / 64% ......

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用戶26803

2009-11-23 1:35 am

電腦遊戲明顯是320美元的折扣出售40％。如果折扣為64％的成本價格，找到利潤或虧損百分之?
自己計,我不熟.我未到中1,你自己做,我幫你睇左
^^,加油!

參考: 金山

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[匿名]

2009-11-23 1:34 am

80!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

參考: mmmmmmmmmmmmmmm

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