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What will be the units digit of the square of the given number $5125$ ?

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0

1

5

9

answer is C.

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Detailed Solution

Given number is 5125.
Unit’s digit of multiplication of two numbers is obtained by taking the last digit of the multiplication of two numbers that is, the digits at the unit place.
Unit’s digit of

5125 \times 5125

is obtained by taking the last digits

5 \times 5 = 25

\Rightarrow

Unit digit of square of

5125

5

.
Therefore, option (3) is correct.

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