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6th Class Mathematics Knowing our Numbers Question Bank Number System

  • question_answer
    Read the following given below, follow the terns of signs given below and answer the questions that follow. (ii) Value of \[3\times [25+\{(-4)\times \,(16-2\,\text{of}\,2)\}]\,\] is

    A)  69                                         

    B)  23

    C)  -69       

    D)              -23

    Correct Answer: C

    Solution :

                         \[3\times [25+\{(-4)\times (16-2\,of\,2)\}]\] \[=3\times [25+\{(-4)\times (16-4)\}]\] \[=3\times [25+\{(-4)\,\times 12\}]\] \[=3\times [25+\{-48\}]\] \[=3[25-48]=3\times (-23)=-69\]


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