Question

What will be the unit digit of the square of 99880?

• A. 2
• B. 4
• C. 6
• D. None of these
  

Answer 1

Answer: (D)

Unit digit of $99880$ $\to$ $0$

$0\times 0$ $\to$ $0$

Hence, Unit digit of $99880\times 99880$ $\to$ $0$

Hence, Option D is correct.