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  4. Quantitative Aptitude
  5. Basic Calculations

Railways Quantitative Aptitude Basic Calculations Sample Paper Square Roots & Cube Roots Sample Test Paper-5

  • question_answer
    The product of two numbers is 1936. If one number is 4 times the other, the numbers are

    A)  16, 121

    B)  22, 88

    C)  44, 44 

    D)  None of these.

    Correct Answer: B

    Solution :

    [b] Let one number = a \[\therefore \,\] Second number = 4 a \[\Rightarrow \] \[4a\times a=1936\] \[\Rightarrow \] \[{{a}^{2}}=\frac{1936}{4}=484\] \[\Rightarrow \] \[{{a}^{2}}=484\] \[\Rightarrow \] \[a=2\times 11=22\] and \[4a=4\times 22=88\] \[\therefore \,\] Numbers are 22 and 88.


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