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  1. In what proportion must a grocer mix sugar at Rs.12 a kg and Rs.7 a kg so as to make a mixture worth Rs. 8 a kg.?
    1. 7 : 12
    2. 1 : 4
    3. 2 : 3
    4. 12 : 7
Correct Option: B

By the rule of alligation,

∴  Required ratio = 1 : 4


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