SSC Sample Paper SSC CGL - Sample Paper-2

  • question_answer
    A book seller bought 200 text books for Rs. 12000. He wanted to sell them at a profit so that he got 20% books free. At what profit per cent should he sell them?

    A)  10                   

    B)  11

    C)  11.5                            

    D)  12

    Correct Answer: A

    Solution :

    Let the cost price of one text book \[=Rs.\,x\] \[\therefore \] The cost price of 200 text book \[=Rs.\,200x\] and gain of 200 text books \[=Rs.\,20x\] \[\therefore \] SP of 200 text books \[=Rs.\,220x\] But SP of 200 text books \[=Rs.\,12000\] \[\therefore \]      \[220x=12000\] \[\Rightarrow \]   \[x=\frac{12000}{220}\] \[\therefore \]      Profit per cent \[=\frac{20}{220}\times 100%\]                         \[=\frac{2000}{200}%=10%\]

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