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An article is sold at a profit of 10%.Had it been sold for Rs.20 more,12% profit would have been made.Find the cost price of the article.

Plz plz fast.

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Plz plz fast.

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Say the cost price is

equals the difference in profits :

equals the difference in profits :

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10% profit => *SP = 110/100 * CP*

or SP = 1.10 CP

SP + Rs 20 gives 12% profit

* SP + Rs 20 = 112/100 *CP or 1.12 CP*

* * 1.10 CP + 20 = 1.12 CP

0.02 CP = Rs 20

CP = Rs 1, 000.

or SP = 1.10 CP

SP + Rs 20 gives 12% profit

0.02 CP = Rs 20

CP = Rs 1, 000.