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9th Class Mental Ability Mathematical Operations Question Bank Mathematical Operations

  • question_answer
    If the signs \['\times '\] and \['-'\]and numbers 6 and 3 are interchanged, then which one of the following equations is correct?

    A) \[6-3\times 8=21~~~\] 

    B) \[~3-6\times 7=9~~~~\]         

    C) \[6-3\times 4=18\]                     

    D)  \[3-6\times 8=10~~~\]

    Correct Answer: D

    Solution :

    : \[3-6\times 8=10\] means \[6\times 3-8=10,\]which is true.


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