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Answer : 3 2:1 Explanation : Answer: C) 2:1 Explanation: Given rate of wheat at cheap = Rs. 2.90/kgRate of wheat at cost = Rs. 3.20/kgMixture rate = Rs. 3/kgRatio of mixture =           2.90                              3.20                              3(3.20 - 3 = 0.20)            (3 - 2.90 = 0.10) 0.20 : 0.10 = 2:1 Hence, wheat at Rs. 3.20/kg be mixed with wheat at Rs. 2.90/kg in the ratio of 2:1, so that the mixture be worth Rs. 3/kg.

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