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5th Class Mathematics Number System and its Operations Question Bank Number System

  • question_answer
    Directions: Find the lowest common multiple in the following questions. [32, 48 and 80]

    A) 480        

    B) 750          

    C) 460                             

    D) 780

    Correct Answer: A

    Solution :

    32, 48 and 80 Prime factors of \[32=2\times 2\times 2\times 2\times 2\] Prime factors of \[48=2\times 2\times 2\times 2\times 3\] Prime factors of \[80=2\times 2\times 2\times 2\times 5\] LCM OF 32, 48 and \[80=2\times 2\times 2\times 2\times 2\times 3\times 5=480\]                       


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