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Tea worth Rs. 126 per kg and Rs. 135 ...

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, then the price of the third variety per kg will be `R s .169.50` b. `R s .175.50` c. `R s .170` d. `R s .180`

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