Multiple Choice Questions on There are 2 rectangular tanks A and B with lengths 12m and 15m in a square field If the total area o........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

There are 2 rectangular tanks A and B with lengths 12m and 15m in a square field If the total area o...........

Quantitative Aptitude ( CCS) Mensuration 2D
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    There are 2 rectangular tanks A and B with lengths 12m and 15m in a square field. If the total area of the square field excluding the rectangular tanks is 360sq m and the breadth of both the rectangular tanks is 1/3 of the side of the square field, find the perimeter of the square field?

    100m

    Incorrect Answer

    75m

    Incorrect Answer

    82m

    Incorrect Answer

    96m

    Correct Answer
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    Explanation:

    Area A = 12*a/3 = 4a
    Area B = 15*a/3 = 5a
    a2-9a-360 = 0
    (a-24)(a+15) = 0
    A=24
    Perimeter of the square = 4a = 4*24 = 96m

    By: Amit Kumar
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