Multiple Choice Questions on A circular park 42 m in diameter has a path 3 5 m wide running around it on the outside Find the cos........... for Study NOtes Preparation

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Multiple Choice Questions

A circular park 42 m in diameter has a path 3 5 m wide running around it on the outside Find the cos...........

Quantitative Aptitiude (CLAT) Mensuration
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    A circular park, 42 m in diameter, has a path 3.5 m wide running around it on the outside. Find the cost of gravelling the path at Rs. 4 per m2

    Rs. 1672

    Incorrect Answer

    Rs. 1652

    Incorrect Answer

    Rs. 2002

    Correct Answer

    Rs. 2048

    Incorrect Answer
    Explanation:

    Radius of the park without path
    = 42/2 = 21
    radius of the park with path
    = 21 + 3.5 = 24.5 m
    area of the path
    = 22/7 ( 24.5^2 - 21^2 ) = 500.5
    cost = 4 x 500.5 = Rs 2002

    By: Amit Kumar
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