Question

Which of the following numbers is a perfect square?

• A. $141$
• B. $196$
• C. $124$
• D. $222$

Answer 1

The correct option is B $196$

$196=2\times 2\times 7\times 7=(2\times 7{)}^2=(14{)}^2$
Hence 196 is perfect square of 14.