Last digit of $13 \times 13$ is

Last digit of $13 \times 13$ is
  1. $3$
  2. $6$
  3. $9$
  4. $7$

Solution

$13 \times 13 = 169$. Last digit is $9$ (also $3 \times 3 = 9$).

Asked in: NSO

Practice more SQUARES AND SQUARE ROOTS questions on Aicharya