7th Class Mental Ability Mathematical Reasoning Question Bank Mathematical Reasoning

  • question_answer
    If   the   signs   \[\text{ }\!\!'\!\!\text{  }\!\!\div\!\!\text{  }\!\!'\!\!\text{ }\]   and   \[\text{ }\!\!'\!\!\text{ + }\!\!'\!\!\text{ }\]   and   the   digits \[\text{ }\!\!'\!\!\text{ 9 }\!\!'\!\!\text{ }\] and \[\text{ }\!\!'\!\!\text{ 3 }\!\!'\!\!\text{ }\] are interchanged, then which one of the four equations would be correct?

    A) \[\text{3 + 9  }\!\!\div\!\!\text{  4 = 8}\]               

    B)  \[\text{3  }\!\!\div\!\!\text{  3 + 9 = 13}\]

    C) \[\text{3 + 9  }\!\!\div\!\!\text{  2 = 5}\]  

    D)         \[\text{3 + 9  }\!\!\div\!\!\text{  9 = 2}\]

    Correct Answer: C

    Solution :

     On interchanging - and + numbers 9 and 3 in , we get the equation \[9\div 3+2=5\]  or \[3+2=5\] which is true.


You need to login to perform this action.
You will be redirected in 3 sec spinner