Multiple Choice Questions on The length of a rectangular floor is twice its breadth If Rs 450 is required to paint the floor at t........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The length of a rectangular floor is twice its breadth If Rs 450 is required to paint the floor at t...........

Quantitative Aptitude ( CCS) Mensuration 2D
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    The length of a rectangular floor is twice its breadth. If Rs.450 is required to paint the floor at the rate of Rs.1 per square metre, then what would be the length of floor?

    28m
    Incorrect Answer
    34m
    Incorrect Answer
    26m
    Incorrect Answer

    30m

    Correct Answer
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    Explanation:

    To paint per square metre for Rs 1.
    Then 450m2 is the area of the floor.
    Let the breadth be x.
    x*2x=450
    2x2=450
    x2=225
    x=15.
    Length=2*15=30m.

    By: Amit Kumar
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