Multiple Choice Questions on The length of a rectangular floor is more than its breadth by 200 If Rs 324 is required to pai........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The length of a rectangular floor is more than its breadth by 200 If Rs 324 is required to pai...........

Quantitative Aptitude ( CCS) Mensuration 2D
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     The length of a rectangular floor is more than its breadth by 200%. If Rs. 324 is required to paint the floor at the rate of Rs. 3 per sq m, then what would be the length of the floor?

    27 m

    Incorrect Answer

    24 m

    Incorrect Answer

    18 m

    Correct Answer

    21 m

    Incorrect Answer
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    Explanation:

    Let the length and the breadth of the floor be L and B respectively.

    L = B + 200% of B    =>   L = B + 2B = 3B

    Area of the floor = 324/3 = 108 sq m

    L*B = 108   i.e., L * L/3 = 108

    L2 = 324  =>  L = 18

    By: MIRZA SADDAM HUSSAIN
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