★★最佳者雙倍有30分 :Solve the Problem (F,1 Maths)

2007-02-26 7:28 pm
The question:

(A.) What was the profit percent or loss percent?

(B.) If Mr. cheung had forecasted that the demand of the market would decrease and he
had bought 150 kg instead of 250 kg of New Zealand lamb chops, what would the
profit percent or loss percent have been then?
更新1:

The data: Mr. Cheung has a business of selling lamb chops from New Zealand and Australia. He bought 150 kg of New Zealand lamb chops and 83 kg of Australian lamb chops which cost $39/kg and $50/kg respectively.

更新2:

Later, the cost of New Zealand lamb chops rose to $40/kg and he bought 250 kg more. He sold the New Zealand and Australian lamb chops at $55/kg and $60/kg respectively. On the expiry date of those lamb chops, he sold only 300 kg of New Zealand lamb chops ang 80 kg of Australianlamb chops.

更新3:

All the remaining lamb chops had to be destroyed.

回答 (3)

2007-02-26 7:58 pm
✔ 最佳答案
(A) the profit percent or loss percent = Total sales - total cost/total cost *100%
= [(300*55 + 80*60) - (150*39 + 83*50 + 250*40) / (150*39 + 83*50 + 250*40)] * 100%
= 6.5%
Therefore, there is 6.5% profit.

(B) the profit percent or loss percent = Total sales - total cost/total cost *100%
= [(300*55 + 80*60) - (150*39 + 83*50 + 150*40) / (150*39 + 83*50 + 150*40)] * 100%
= 33.125%
Therefore, there is 33.125% profit.
2007-02-26 9:13 pm
(A.)New Zealand lamb chops total costs:150x39+250x40=5950+10000=$15850
Australian lamb chops total costs:83x50=$4150

New Zealand lamb chops total income =400x55=$22000
Australian lamb chops total income =80x60=$4800
(Total income-total cost)/total cost =(26800-20000)/20000x100%=34%
The profit percent is 34%

(B.)New Zealand lamb chops total costs:150x39+150x40=5950+6000=11950
Australian lamb chops total costs:83x50=$4150
New Zealand lamb chops total income =300x55=16500
Australian lamb chops total income =80x60=$4800
(Total income-total cost)/total cost =(21300-16100)/16100x100%=52/161=32.29%

2007-02-26 13:18:26 補充:
(B.)The profit percent is 32.29%
2007-02-26 7:50 pm
(A)
Total Cost = 150 x $39 + 250 x $40 + 83 x $50 = $19,170
Total Revenue = 300 x $55 + 80 x $60 = $21,300
Profit / Loss = Revenue - Cost = $21,300 - $19,170 = $2,130
Profit Percent = Profit / Cost x 100% = 2130/19170 x 100% = 11.11%

(B)
Total Cost = 150 x $39 + 150 x $40 + 83 x $50 = $15,170
Total Revenue = 300 x $55 + 80 x $60 = $21,300
Profit / Loss = $21,300 - $15,170 = $6,130
Profit Percent = 6130/15170 x 100% = 40.41%


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