Question 1174189
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An article is sold at a discount of 10% and a profit of 20% is made. 
If the cost price of the article is $3600, find its marked price.
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Let x be its marked price.


From the condition, the article was sold ar the discounted price of 0.9x and the profit was 20% of the cost price.

So, the profit was  0.2*3600 = 720 dololars.


It gives this equation


    0.9x - 3600 = 720   dollars.


From the equation,  x = {{{(720+3600)/0.9}}} = 4800  dollars.


<U>ANSWER</U>.  The marked price of the item was 4800 dollars.


<U>CHECK</U>.  The discounted price  was  0.9*4800 = 4320  dollars;

        the profit is  4320 - 3600 = 720  dollars.   ! correct !
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