Multiple choice

The difference between the selling prices of an article at a profit of 15% and at a profit of 10% is Rs.10. The cost price of the article is - किसी वस्तु को 15% तथा 10% के लाभों से बेचने पर प्राप्त विक्रय मूल्य का अन्तर 10 रू.है। वस्तु का क्रय मूल्य है-

  1. Rs.100

  2. Rs. 120

  3. Rs.150

  4. Rs.200
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let the cost price be x. Selling price at 15% profit = 1.15x, and at 10% profit = 1.10x. The difference 1.15x - 1.10x = 0.05x equals Rs.10. Solving gives x = 10/0.05 = Rs.200. Option D is correct.

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