Multiple Choice Questions on What is the digit in unit 39 s place of the number represented by 398 389 ........ for CDS Exam Preparation

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Multiple Choice Questions

What is the digit in unit 39 s place of the number represented by 398 389 ........

Quantitative Aptitude (CDS) Number System
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    What is the digit in unit's place of the number represented by 398 - 389 ?

    3

    Incorrect Answer

    6

    Correct Answer

    7

    Incorrect Answer

    9

    Incorrect Answer
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    Explanation:

    Unit digit of (398 - 389) = Unit digit of (396 . 32 - 388 .31) = Unit digit of (1x9-1x3)
    = 6

    By: Munesh Kumari
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