A merchant buys 100 pens for Rs. 500 and sells 80 of them at a 10% profit per pen. If the remaining pens are sold at 10% loss per pen, what is the overall percentage profit or loss?
A merchant buys 100 pens for Rs. 500 and sells 80 of…
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Written by
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A merchant buys 100 pens for Rs. 500 and sells 80 of them at a 10% profit per pen. If the remaining pens are sold at 10% loss per pen, what is the overall percentage profit or loss?
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