Multiple choice

Two varieties of rice, A and B, costing Rs. 210 and Rs. 280 per kg respectively are mixed in the ratio of 3 : 4. The mixed variety is sold at Rs. 260 per kg. What is the profit percentage?

  1. 6%

  2. 5%

  3. 32%

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

The weighted average cost price is ((3 * 210) + (4 * 280)) / (3 + 4) = (630 + 1120) / 7 = 1750 / 7 = 250 per kg. The profit is 260 - 250 = 10 per kg. The profit percentage is (10 / 250) * 100 = 4%.

AI explanation

Using the weighted average method, the cost price of the mixture is ((3 x 210) + (4 x 280)) / (3 + 4), which equals 1750 / 7 or Rs. 250 per kg. The mixture is sold for Rs. 260, yielding a profit of 260 minus 250, which is Rs. 10. Applying the profit percentage formula, (10 / 250) x 100 equals 4%. The result is 4%.

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