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

1. A600
2. B540
3. C350
4. D380

Pick an option to check yourself, or open the answer below.

Show answer & explanation

Correct answer: A. 600

Explanation

Let the cost price be x. The extra Rs. 18 corresponds to the extra gain of 18% - 15% = 3% of x. So 0.03x = 18, giving x = 600. Hence the answer is Rs. 600.मान लें क्रय मूल्य x है। अतिरिक्त 18 रुपये, x के अतिरिक्त लाभ 18% - 15% = 3% के बराबर हैं। अतः 0.03x = 18, जिससे x = 600। अतः उत्तर 600 रुपये है।