A shopkeeper marks an article at 40% above the cost price and allows a discount of 25%. What is the percentage profit or loss?
5% profit
Take the cost price as 100 for easy calculation.
Marking 40% above cost gives a marked price of \(100 + 40 = 140\).
A discount of 25% is allowed on this marked price, so the selling price = \(140 \times (1 - 0.25) = 140 \times 0.75 = 105\).
The selling price 105 exceeds the cost price 100, so there is a profit of \(105 - 100 = 5\) on 100.
Hence, there is a 5% profit.
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