Question

Find the square root by guessing the units and tens digit:

$2116$

• A. $46$
• B. $50$
• C. $52$
• D. $58$

Answer 1

The correct option is A $46$

Its unit digit is 6 and tens digit is 1

For unit digit 6 , there are two possibilities either the square root end with 6 or 4

And according to options $46$ is the correct option