Verified by Ajay Kumar
An item is marked at 20% more than its cost price by the retailer. He then offers a 10% discount. Determine the shopkeeper's percentage of profit.
10%
8%
12%
15%
Answer: B
Assume CP = ₹100. Marked price = \(100\times\frac{120}{100}=120\)₹. Selling price after 10% discount = \(120\times\frac{90}{100}=108\)₹. Profit = ₹108 - ₹100 = ₹8. Profit percentage = \(\frac{8}{100}\times100=8\%\). Trick: Net profit percentage = \(20-10-\frac{20\times10}{100}=8\%\).
एक वस्तु का मूल्य खुदरा विक्रेता द्वारा उसके क्रय मूल्य से 20% अधिक अंकित किया जाता है। फिर वह उस पर 10% की छूट देता है। दुकानदार का लाभ प्रतिशत ज्ञात कीजिए।
10%
8%
12%
15%
उत्तर: B
मान लीजिए CP = ₹100। अंकित मूल्य = \(100\times\frac{120}{100}=120\)₹। 10% छूट के बाद विक्रय मूल्य = \(120\times\frac{90}{100}=108\)₹। लाभ = ₹108 - ₹100 = ₹8। लाभ प्रतिशत = \(\frac{8}{100}\times100=8\%\)। ट्रिक: शुद्ध लाभ प्रतिशत = \(20-10-\frac{20\times10}{100}=8\%\)।
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