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The unit digit in the square of the number $$27$$ is（ ）
A. $$7$$
B. $$2$$
C. $$5$$
D. $$9$$
Speed
00:00
02:02

## QuestionMathsClass 8

The unit digit in the square of the number $$27$$ is（ ）
A. $$7$$
B. $$2$$
C. $$5$$
D. $$9$$

D
4.6
4.6

## Solution

Given number is $$27$$
Unit digit of the number $$27$$ is $$7$$.
Squaring it, we get,
$$= 7^2=7 \times 7 =49$$
$$\therefore$$ unit digit of the square of the number $$27$$ is $$9$$.