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Two varieties of Coffee worth Rs. 126 per kg and Rs. 130 per kg are mixed with a third variety in the ratio 1: 1: 2. If the resulting mixture is worth Rs. 172 per kg, then the price (Rs. /kg) of the third variety of the coffee is___


Options:
Answer: Option A
:

Two varieties @ Rs. 126 and Rs. 130 are mixed in equal ratio of 1: 1. So, their average price can be taken as (126+130)2=Rs. 128 per kg. Now we have two varieties: one at the rate Rs. 128 per kg and other at the rate Rs. x per kg which are mixed in the ratio 2: 2 or 1: 1 to give a resulting mixture of Rs. 172 per kg.


Applying Alligation:


Two Varieties Of Coffee Worth Rs. 126 Per Kg And Rs. 130 Per...


X17244=11


 x = 216.


So, the price of the third variant is Rs. 216 per kg.



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