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7. The marked price of a computer is * 22,000. After allowing 10% discountdealer still makes a profit of 20%. Find the cost price of a computer |
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Answer» Answer: The MARKET price of the computer is RS 22000. After 10% discount ,its cost be = Rs [ 22000 -(22000× 10 %)] = Rs [ 22000-(22000×10/100] = Rs (22000-2200) = Rs 19800 Let us take the cost price of the computer be Rs x The DEALER MADE a PROFIT of 20℅ Then , its selling price are =Rs [x+(x ×20℅)] = Rs (x+x÷ 5) = Rs (6x%5) By the given conditions, 6x/5 = 19800 = x=19800×5/6 = x= 16500 Therefore, The cost price of the computer is Rs 16500 |
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