6th Class Mathematics Number System and its Operations Question Bank Number system and its Operations

  • question_answer If A = 15, B = 16 and C = 17, then which of the following is not true?

    A) \[\left( A\,\,+\,\,B \right)\,\,+\,\,C\,\,=\,\,A\,\,+\,\,\left( B\,\,+\,\,C \right)\]

    B) \[\left( A\,\,\,\times \,\,\,B \right)\,\,\,\times \,\,C\,\,\,=\,\,\,A\,\,\times \,\,\,\left( B\,\,\times \,\,C \right)\]

    C) \[A\text{ }+\text{ }\left( B\text{ }\times \text{ }C \right)\text{ }=\text{ }\left( A\text{ }\times \text{ }B \right)\text{ }+\text{ }\left( B\text{ }\times \text{ }C \right)\]

    D) \[A\text{ }\times \text{ }\left( B\text{ }+\text{ }C \right)\text{ }=\text{ }\left( A\text{ }\times \text{ }B \right)\text{ }+\text{ }\left( A\text{ }\times \text{ }C \right)\]

    E) None of these

    Correct Answer: C


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