Question

What will be the units digit of the square of the given number $7286$ ?

• A. $0$
• B. $1$
• C. $5$
• D. $6$

Answer 1

The correct option is D $6$

Unit digit of multiplication of $2$ numbers is obtained by taking the last digit of the multiplication of two numbers i.e. the digits at the unit place

Units digit of $7286\times 7286$ is obtained by taking the last digit of $6\times 6=36$

$\Rightarrow$ Unit digit of square of $7286$ is $6$.