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SSC Sample Paper Mock Test-4 SSC CGL Tear-II Paper-1

  • question_answer
    A student was asked to multiply a number by \[\frac{3}{2}\]but he divided that number by \[\frac{3}{2}.\]His result was 10 less than the correct answer. The number was

    A)  10                               

    B)  12

    C)  15                               

    D)  20

    Correct Answer: B

    Solution :

    Let the given number be x. Then, \[\left( x\times \frac{3}{2} \right)-\left( x\div \frac{3}{2} \right)=10\] \[\Rightarrow \]               \[\frac{3}{2}x-\frac{2}{3}x=10\] \[\Rightarrow \]               \[\frac{9x-4x}{6}=10\] \[\Rightarrow \]                           \[5x=60\] \[\Rightarrow \]                           \[x=12\]


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