Question

What will be the unit digit of square of 34?

• A. 4
• B. 5
• C. 6
• D. 8

Answer 1

The correct option is C

6

Given number is 34.
34 has 4 in its units place.

$4^2$ = 4 x 4 = 16
Units place of 16 is 6.

Therefore, ${34}^2$ will have 6 in its units place.

[Infact,
${34}^2=1156\to$ has 6 at its units place.]