Multiple choice

The difference between the selling prices of some articles if sold for Rs. 12 per article instead of Rs. 9 per article is Rs. 150 . If the cost price of these articles is Rs. 250 , then find the selling price of 21 articles if profit earned is 20%.

  1. Rs. 125

  2. Rs. 136

  3. Rs. 130

  4. Rs. 126
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Difference in SP = Rs. 12 - Rs. 9 = Rs. 3 per article. Total difference = Rs. 150. Number of articles = 150/3 = 50. CP of 50 articles = Rs. 250, so CP per article = Rs. 5. For 21 articles, total CP = 21 × 5 = Rs. 105. Profit at 20% = 105 × 0.20 = Rs. 21. SP = CP + Profit = 105 + 21 = Rs. 126. This matches option D.

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