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7th Class Mathematics Mensuration Question Bank Mensuration

  • question_answer
    DIRECTIONS: Passage ? 2 Read the passage(s) given below and answer the questions that follow A rectangular park is of dimensions 90 m by 80 m. Four paths pass through the park such that two paths each of width 2m are parallel to the breadth and two paths each of width 3 m are parallel to the length. Total area of the four roads is

    A)  \[386\,{{m}^{2}}\]             

    B)  \[836\,{{m}^{2}}\]

    C)  \[863\,{{m}^{2}}\]                         

    D)  \[368\,{{m}^{2}}\]

    Correct Answer: B

    Solution :

        Total area of the four roads \[=\]Area of four roads\[-\]common area \[=\,~\left[ \left( 540+320 \right)-4\times \left( 2\times 3 \right) \right]{{m}^{2}}.\] \[=\,~\left( 860 \right)-24=836\,{{m}^{2}}.\]


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