Multiple Choice Questions on If the length of a side of a square is increased by 8 cm its area increases by 120 square cm What is........... for CDS Exam Preparation

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Multiple Choice Questions

If the length of a side of a square is increased by 8 cm its area increases by 120 square cm What is...........

Quantitative Aptitude (CDS) Mensuration 2D
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    If the length of a side of a square is increased by 8 cm, its area increases by 120 square cm. What is the length of a side of the square?

    2.5 cm

    Incorrect Answer

    3.5 cm

    Correct Answer

    4.5 cm

    Incorrect Answer

    5.5 cm

    Incorrect Answer
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    Explanation:

    Let side of square = x

    Area = x2

    After increasing; (X+8)2 = x2 +120

    On solving this equation, we get, x = 3.5 cm

    By: Munesh Kumari
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