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  1. What will be the unit’s digit in the value of (3127)173?
    1. 9
    2. 1
    3. 3
    4. 7
Correct Option: D

Here the unit’s digit of 3127 is 7 and the index is 173
So, if we divide 173 by 4, the remainder is 1.
∴  The required unit’s digit
= (7)1 = 7


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