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SSC Quantitative Aptitude Mixture And Alligation Question Bank Mixture and Allegation (II)

  • question_answer
    A shopkeeper blends two varieties of tea costing Rs. 18 and Rs. 13 per kg in the ratio 7 : 3. He sells the blended variety at the rate of Rs. 18.15 per kg. His percentage gain in the transaction is

    A) 4

    B) 8

    C) 10

    D) 20

    Correct Answer: C

    Solution :

    [c] Let 7 kg of 1st kind of tea be mixed with 3 kg of 2nd kind. CP of \[(7+3)\] kg mixture             \[=(18\times 7+13\times 3)=\text{Rs}.\,\,165\] SP of 10 kg mixture \[=\text{Rs}.\,\,(18.15\times 10)\]             = Rs. 181.50 Gain per cent \[=\left( \frac{16.50}{165}\times 100 \right)=10%\]


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