Multiple choice

If 4 kg of sugar costing Rs. 20 per kg and 3 kg of salt costing Rs. 6 per kg are mixed, the average cost of the mixture per kg is

  1. Rs. 13.57

  2. Rs. 7

  3. Rs. 14.25

  4. Rs. 14

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Total cost of 4 kg sugar = Rs. (20 X 4) = Rs 80 Total cost of 3 kg salt = Rs. (3 X 6) = Rs 18 Total cost of 4 kg sugar and 3 kg salt = Rs. 98 Total weight of the mixture = (4 + 3) kg = 7 kg Therefore average cost per kg = Rs (98/7) = Rs 14 Hence, this option is correct.

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