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Finding Cost Price/Selling Price, Profit %/Loss%

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Example:  Sohan bought a second hand refrigerator for Rs. 2,500, then spent Rs. 500 on its repairs and sold it for Rs. 3,300. Find his loss or gain per cent.
Solution: Cost Price (CP) = Rs. 2500 + Rs. 500 (overhead expenses are added to give CP) 
= Rs. 3000 
Sale Price (SP) = Rs. 3300 
As SP > CP, he made a profit = Rs. 3300 – Rs. 3000 = Rs. 300 
His profit on Rs. 3,000, is Rs. 300. How much would be his profit on Rs.100?
Profit =`300 / 3000 xx 100 % = 30/3 % = 10 %`

`P% = P/(CP) xx 100%`

Shaalaa.com | Cost Price and Selling Price

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