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  5. Squares and Square Roots

8th Class Mathematics Squares and Square Roots Question Bank Squares and Square Roots

  • question_answer
    The least positive integer with which 661.25 should be multiplied so that the product is a perfect square, is ____.

    A)  4                                

    B)  5

    C)  Both [a] and [b]         

    D)  None of these

    Correct Answer: B

    Solution :

    We have \[661.25=\frac{66125}{100}\] \[\frac{66125}{100}=\frac{5\times 5\times 5\times 23\times 23}{10\times 10}\] \[\therefore \] The least positive integer with which 661.25 should be multiplied to make it a perfect square is 5.


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