Question
By selling an article for Rs. 400, a shopkeeper suffers
a loss of 20%. Find the selling price to gain 10%.Solution
Loss 20% ⇒ SP = 80% of CP 400 = (80/100) × CP CP = 400 × 100 / 80 = 400 × 5/4 = 500 To gain 10%, SP should be: SP = 110% of CP = (110/100) × 500 = 550 Answer: SP for 10% gain = Rs.550
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