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SSC Sample Paper SSC CGL - Sample Paper-1

  • question_answer
    A man has 100 kg of sugar, part of which he sold at 7% profit and rest at 17% profit. He gained 10% on the whole. How much did he sell at 7% profit?

    A)  65 kg               

    B)  35 kg

    C)  30 kg               

    D)  70 kg

    Correct Answer: D

    Solution :

    Let the amount of sugar sold at 7% profit be x kg and let CP per kg be Rs. 1. Total \[CP=Rs.100\] Total \[SP=107%\] of \[x+117%\] of \[(100-x)\]             \[=1.07x+1.17(100-x)\]             \[=1.07x+117-1.17x\]             \[=117-0.1x\] \[\therefore \]      \[117-0.1x\]             \[=110%\] of 100 \[\Rightarrow \]   \[0.1x=117-110=7\] \[\Rightarrow \]   \[x=\frac{7}{0.1}=7\times 10=70\,\,kg\]


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