Multiple Choice Questions on 20 of a number when added to 20 becomes the number itself then the number is ........ for CDS Exam Preparation

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Multiple Choice Questions

20 of a number when added to 20 becomes the number itself then the number is ........

Quantitative Aptitude (CDS) Percentage
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    20% of a number when added to 20 becomes the number itself, then the number is

    20

    Incorrect Answer

    25

    Correct Answer

    50

    Incorrect Answer

    80

    Incorrect Answer
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    Explanation:

    Let the number be n. Then,20/100 n+20=n

    ⇒n−1/5n=20

    ⇒4/5n=20

    ⇒n=25

    By: Munesh Kumari
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