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9th Class Mental Ability Mathematical Operations Question Bank Mathematical Operations

  • question_answer
    If the signs \['\times '\]and \['\div '\]as well as the numbers 10 and 20 are interchanged, then select the correct one alternative out of the following four.

    A) \[4\div 20-10\times 5=36\]                                  

    B)  \[10+20\times 4\div 5=6\]

    C) \[4+5\div 20\times 10=6~\]                               

    D)  \[10\times 20+5-6=8~\]

    Correct Answer: A

    Solution :

    : \[4\div 20-10\times 5=36\]means \[4\times 10-20\div 5=\text{ }36\text{ }or\text{ }36=36.\]


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