the marked price of an article is 2500.if after giving a discount of 10%,a trader still gets a profit of 12½%,find the cost price of the article...
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On 2250 he gains 12.5%
112.5x/100=2250
X=2250/112.5
Now solve for x
112.5x/100=2250
X=2250/112.5
Now solve for x
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