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5th Class Mathematics Factors and Multiples Question Bank Factors and Multiples

  • question_answer
    \[A\]and\[B\]are two\[1-\]digit numbers such that\[A\times A\times B\times B=2025\]. What are the respective values of\[A\]and\[B\]?

    A)  \[5,\,\,9\]                                  

    B)                     \[5,\,\,3\]                      

    C)                     \[9,\,\,4\]                      

    D)                     \[2,\,\,5\]

    Correct Answer: A

    Solution :

    \[5\] \[2025\]
    \[5\] \[405\]
    \[9\] \[81\]
    \[9\]
    \[2025=5\times 5\times 9\times 9\]          \[=A\times A\times B\times B\] Therefore,\[A=5\] and\[B=9\].


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