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Question

In a rice mill, an owner mixes 30 kg of rice worth Rs. 15 per kg with 45 kg of rice worth Rs. 20 per kg. At what rate he must sell the mixture to gain 10%?

  • 16.2
  • 17.4
  • 18.6
  • 19.8
Answer- D

Total cost price of (30+45) 75 kg of mixture = (30*15+45*20)

= 450+900

= Rs. 1350

Cost Price per kg of mixture = 1350/75 = Rs. 18 per kg

Now, Required gain = 10%

Required selling price per kg of mixture = 110/100 ∗ 18 = Rs. 19.8 per kg