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MartyMurray
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MartyMurray
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enidaddams
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straight approach::
let 100 lbs ----purchased at rate of 80 cents/lbs
so CP=8000 cents
20%=20 lbs * sold at 160 cents/lbs=3200 cents
80% of 80 lbs=64 lbs * sold at 160*3/4 cents/lbs=7680 cents
rest 16 lbs are not sold
so SP=10880 cents
profit %=(10880 - 8000)/ 8000*100=36%
A
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Wadree
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Let...... Total 100 lbs orange........and cost price can be whatever per lbs....lets take.... 100 per lbs = cost price.....
So.....20% of orange means 20 lbs orange in this case.....so 20 lbs orange sold at double cost price = 200 per lbs .......
...so profit ..... 200 - 100 = 100 per lbs.....so total profit for 20 lbs = 100 × 20 = 2000 .......

So 20 lbs sold.... Remaining = 100 - 20 = 80 lbs..... So.... 80% of remaining = 64 lbs .....
So....64 lbs sold for 25% reduced price from previous selling price.....so new selling price = 75% of 200 = 150 per lbs.....
....so profit..... 150 - 100 = 50 per lbs....so total profit for 64 lbs = 64 × 50 = 3200 .....

So total profit = 2000 + 3200 = 5200 ....

Now.... total sold = 20 + 64 = 84 lbs .... Not sold = 100 - 84 = 16 lbs ....
So... total loss = cost price of unsold 16 lbs = 16 × 100 = 1600 .....

So ..... Net profit = 5200 - 1600 = 3600 ..... Which is da cost price of 36 lbs orange.......

So....from spending money worth 100 lbs of orange..... Got profit money worth 36 lbs of orange...... In other words....by spending 100 .... Profit is 36 ..... So profit percentage ...... 36 % ........
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