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SSC Sample Paper SSC CGL - Sample Paper-9

  • question_answer
    A boy was asked to multiply a certain number by 50. He multiplied it by 30 and got his answer less than the correct one by 400. The number to be multiplied was

    A)  10                               

    B)  20

    C)  30                               

    D)  40

    Correct Answer: B

    Solution :

    Let required number be x. \[\therefore \] According to question,             \[50x-30x=400\]             \[20x=400\] \[\therefore \]      \[x=20~\]


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