Multiple Choice Questions on A tea of 10 Rs kg total amount is 15 kg How much amount is mixed of 4 Rs kg so that rate of mixture ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A tea of 10 Rs kg total amount is 15 kg How much amount is mixed of 4 Rs kg so that rate of mixture ...........

Quantitative Aptitude (CDS) Mixture and Alligation
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    A tea of 10 Rs/kg total amount is 15 kg.How much amount is mixed of 4 Rs/kg so that rate of mixture is 6.50 Rs/kg?

    22 kg

    Incorrect Answer

    21 kg

    Correct Answer

    15 kg

    Incorrect Answer

    12 kg

    Incorrect Answer
    Explanation:

    10 Rs/kg total amount of 15 kg
    x amount of 4 Rs/kg 
    resultant mixture rate 6.50 Rs/kg
    using mixture method 
    10-6.50:6.50-4
    3.5 :2.5
    7:5
    ratio of amount is 7:5
    7/5 =x/15
    x=21 kg

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