Alligation or Mixture - Arithmetic Aptitude Questions and Answers

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Discussion :: Alligation or Mixture

Tea worth Rs. 126 per kg and Rs. 135 per kg are mixed with a third variety in the ratio 1 : 1 : 2. If the mixture is worth Rs. 153 per kg, the price of the third variety per kg will be:

Rs. 169.50

Rs. 170

Rs. 175.50

Rs. 180

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Answer : Option C

Explanation :

Since first and second varieties are mixed in equal proportions.

so,their average price = Rs. \([ \frac { 126+135 } { 2 } ]\) = Rs.130.50

So, the mixture is formed by mixing two varieties, one at Rs. 130.50 per kg and the other at say, Rs. x per kg in the ratio 2 : 2, i.e., 1 : 1. We have to find x.