Question:In what ratio must wheat at Rs. 3.20 per kg be mixed with wheat at Rs. 2.90 per kg so that the mixture be worth Rs. 3.08 per kg? 

A 4 : 3 

B 3 3 : 4 3 : 4 3 : 4 

C 2 : 3 

D 3 : 2 

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