A shopkeeper sells an article at 15% gain. Had he sold it for Rs. 18 more, he would have gained 18%. The cost price (in Rs.) of the article is :

एक दुकानदार एक वस्तु को 15% लाभ पर बेचता है, अगर उसने उसे 18 रुपये अधिक में बेचा होता, तो उसका लाभ 18% हो जाता। उस वस्तु का क्रय मूल्य (रु0 में) है :

1. A360
2. B540
3. C600
4. D640

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Correct answer: C. 600

Explanation

The extra ₹18 equals 18% − 15% = 3% of cost price, so CP = 18 ÷ 0.03 = ₹600.

अतिरिक्त ₹18 = क्रय मूल्य का 3%, अतः क्रय मूल्य = 18 ÷ 0.03 = ₹600।