Multiple Choice Questions on What will be the Unit digit of 27 ........ for Civil Services Exam (CSAT) Preparation

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Multiple Choice Questions

What will be the Unit digit of 27 ........

Math and Mental Ability Number System
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    What will be the Unit digit of 27!

    0

    Correct Answer

    1

    Incorrect Answer

    2

    Incorrect Answer

    3

    Incorrect Answer
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    Explanation:

    1*2*3*………………………………26*27
    Factorial after 6 should end with 0.
    Hence, option 1 is the correct answer.

    By: Amit Kumar
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    REF ASPIRANT

    didnt understand the explantion

    0 0 reply

    sunny bhonsle

    1 ! = 1 2! = 2x1 3! = 3x2x1 .. , , , , , ,5 != 5x4x3x2x1 = 120. if we multiply any term by unit digit 0 no it will contain unit digit 0.

     0 0 reply
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