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6th Class Mathematics Playing with Numbers Question Bank Playing with Numbers

  • question_answer
    The least number of square tiles that will be needed to pave a plot 225 m by 30 m is

    A)  30 tiles

    B)  15 tiles

    C)  25 tiles

    D)  45 tiles

    Correct Answer: A

    Solution :

    Largest length of side of square tile is the HCF of 225 and 30. \[\therefore \] HCF = 15 Number of tiles required \[=\frac{\text{Area of plot}}{\text{Area of 1 tile}}=\frac{225\times 30}{15\times 15}=30\]


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