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7th Class Mental Ability Mathematical Reasoning Question Bank Mathematical Reasoning

  • question_answer
    Which two signs are to be interchanged to make the equation below true? \[\text{5  }\!\!\times\!\!\text{  15 }\div \text{ 7 - 20 + 4 = 77}\]

    A)  \[-\]and \[\div \]            

    B)         \[\times \]and \[\div \]

    C)  \[\text{+}\] and \[\div \]              

    D)         \[\text{+}\] and \[\times \]

    Correct Answer: C

    Solution :

     If we interchange signs + and \[\div \], then the equation changes to \[5\times 15+7-20\div 4=75+7-5=77\]


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