Question

What will be the unit digit of the square of 55555?

• A. 4
• B. 5
• C. 0
• D. 1

Answer 1

The correct option is B 5

Unit digit of $55555$ $\to$ $5$

$5\times 5$ $\to$ $25$

Hence, Unit digit of $55555\times 55555$ $\to$ $5$

Hence, Option B is correct.