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The marked price of a computer is 22,000. After allowing a 10% discountdealer still makes a profit of 20%. Find the cost price of a computer.discount of |
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Answer» Profit = selling price - cost price let the cost price be cThe selling price: = 10% discount= discounted price = 100%(marked price) - discount (10%) = 90% = 90%/100% × 22000 = 0.9× 22000 = rs. 19800This discounted price is the selling price. Therefore profit = 19800 - C % profit = profit/ cost price×100% = 19800-c/ c×100% = 20% = 100(19800-c)/c = 20 = 100(19800-c)/c = 20 = 1980000 - 100c = 20c = 120c = 1980000 = c = 1980000/120 c = Rs. 16500 |
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