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A shopkeeper sold a product at 10% loss. Had his selling price been Rs. 100 more, he would have made a profit of 10%. What was the cost price ?

A500

B600

C700

D800

Answer:

A. 500

Read Explanation:

Let the cost price of the article be Rs. X Then selling price= 0.9X .9X + 100 = 110%of X 0.9X + 100 = 1.1X 0.2X = 100 X = 100/0.2 = 500


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