12th Class Mental Ability Coding-Decoding Question Bank Question - Mathematical Operation

  • question_answer
    Directions: The two expression on either side of the sign (=) will have the same value if two terms on either side or on the same side are interchanged. The correct terms to be inter-changed have been given as one of the four alternatives under each expressions. Find the correct alternative. If \[\div \] implies =, x implies <, + implies >, - implies x, > implies \[\div \], < implies +, = implies -, identify the correct expression.

    A) \[1-3>2+1-5=3-1<2~\]

    B)       \[1\,\,-\,\,3\,\,>\,\,2\,\,+\,\,1\,\,\times \,\,5\,\,=\,\,3\,\,\times \,\,1>\]

    C) \[1\,\,\times \,\,3\,\,>\,\,2\,\,+\,\,1\,\,\times \,\,5\,\,\times \,\,3\,\,-\,\,1\,\,>\,\,2~\]

    D) \[1\,\,-\,\,3\,\,>\,\,2\,\,+\,\,1\,\,\times \,\,5+3-\,\,1>2\]

    Correct Answer: D

    Solution :

    (d) We get the statement as: \[1\times 3\div 2<1<5>3\times 1\div 2\] or \[\frac{3}{2}>1<5>\frac{3}{2}\], which is true.


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