Practice mode Alligation or Mixture

Two varieties of flour costing Rs. 24 and Rs. 30 per kg are mixed with a third variety in the ratio 1 : 2 : 3. If the mixture costs Rs. 35 per kg, what is the price of the third variety per kg?

Correct answer C. Rs. 42

Explanation

Cost of 6 kg = 6 x 35 = Rs. 210. So 24 + 2 x 30 + 3x = 210, giving 3x = 126 and x = Rs. 42.

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