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  3. 9th Class
  4. Mental Ability
  5. Mathematical Operations

9th Class Mental Ability Mathematical Operations Question Bank Mathematical Operations

  • question_answer
    The interchanges in the digits 9 and 4, and in the signs \['\div '\]and \['\times '\]would make true which one of the following expressions?

    A) \[33\times 9\div 80=14\]                                     

    B)  \[94\times 7\div 97=324~\]

    C) \[40\times 10\div 9=49~\]                                              

    D)  \[30\div 4\times 19=49~\]

    Correct Answer: B

    Solution :

    : \[94\times 7\div 97=324\]becomes \[49\div 7\times 47=329.\]


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