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Question

A merchant purchases a wrist watch for Rs. 450 and fixes the list price in such a way that after allowing a discount of 10% he earns a profit of 20%. The list price of the watch is?

A
Rs. 500
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B
Rs. 600
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C
Rs. 700
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D
Rs. 750
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Solution

The correct option is B Rs. 600
let the list price be x . Discount is x/10 . Selling price is 9x/10
Given profit percentage is 20 . So selling price is 120450/100=540
9x/10=540 ,x=600
Hence Option B is correct.


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