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Find the remainder when 12333 is divided by 10.


Options:
A .   3
B .   9
C .   7
D .   1
E .   8
Answer: Option A
:
A

For remainder when a number is divided by 10, we need to check only the last digit.


We can write 33=4k+1. The first digit in the cycle of 3 = 3 (the cycle of 3 is 3,9,7,1)


12333=1234k+1=...3. Thus,  the last digit of this number will be 3.



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