Multiple Choice Questions on The area of a rectangle is 42 sq cm and its length is 7cm Find its perimeter ........ for RRB(NTPC) Exam Preparation

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Multiple Choice Questions

The area of a rectangle is 42 sq cm and its length is 7cm Find its perimeter ........

Quantitative Aptitude (RRB NTPC) Mensuration 2D
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    The area of a rectangle is 42 sq. cm and its length is 7cm. Find its perimeter.

    14 cm

    Incorrect Answer

    21 cm

    Incorrect Answer

    26 cm

    Correct Answer

    24 cm

    Incorrect Answer
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    Explanation:
    Breadth = 42/7=6cm
    ∴ Perimeter = 2(7+6)= 26 cm

    By: Barka Mirza
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