6th Class Mental Ability Mensuration Question Bank Mensuration

  • question_answer
    Length and width of a rectangular park are 15 m and 12 m, respectively. A circular area of 7 m radius is left for planting flowers. Find the remaining area of the park.

    A) \[25\text{ }{{m}^{2}}\]               

    B)        \[26\text{ }{{m}^{2}}\]

    C) \[24\text{ }{{m}^{2}}\]                

    D)        \[29\text{ }{{m}^{2}}\]

    E) None of these

    Correct Answer: B

    Solution :

    Explanation Option [b] is correct. Area of the rectangular park \[=15\times 12=180{{m}^{2}}\] Area of the circular flower park \[=\frac{22}{7}\times 7\times 7=154{{m}^{2}}.\] Hence, the area of the remaining part of the park \[=180{{m}^{2}}-154{{m}^{2}}=26{{m}^{2}}.\]


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