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7th Class Mental Ability Mathematical Operations Question Bank Mathematical Operations

  • question_answer
    Which of the following interchanges in signs would make the given equation correct? \[16-4\times 2+5\div 1=12\]

    A) (a)\[+\text{ }and\text{ }-\]                     

    B) (b)\[-\text{ }and\times \]             

    C) (c)\[\div \text{ }and\text{ }-\]                  

    D) (d) \[+\text{ }and\text{ }\div ~\]

    Correct Answer: C

    Solution :

    (c) : On interchanging - and -, we get LHS \[=16\div 4\times 2+5-1=\text{ }4\times 2+5-1=\text{ }12~~\]


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