Multiple Choice Questions on If R and S are different integers both divisible by 5 then which of the following is not necessarily........... for Civil Services Exam (CSAT) Preparation

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Multiple Choice Questions

If R and S are different integers both divisible by 5 then which of the following is not necessarily...........

Math and Mental Ability Number System
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    If R and S are different integers both divisible by 5, then which of the following is not necessarily true?

    This questions was previously asked in
    Complete-Test, Previous year (2016)
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    R - S is divisible by 5

    Incorrect Answer

    R + S is divisible by 10

    Correct Answer

    R x S is divisible by 25

    Incorrect Answer

    R2 + S2 is divisible by 5

    Incorrect Answer
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    Explanation:

    If R and S are multiple of 5, then R + S may or may not be divisible by 10. To solve such questions, always take actual values and check. For example, if R = 20 and S = 15. You will see that only (b) is correct.

    By: Amit Kumar
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