Question

Square of a $5$4 by Upsutra Yavadunam Tavadunam Vargecha Yojayet method is?

• A. $2686$
• B. $5656$
• C. $6966$
• D. $2916$

Answer 1

Answer: (D)

$2916$

To find the square of $54$,

This is closer to $100$ (base of 10). Write it as $100-46$.

From this method, we can write,

$\frac{(54-46)}{{46}^2}$ i.e., $\frac{Number-deficiency}{deficienc{y}^2}$

$=\frac{8}{2116}$

As we are using base $100$, digits in hundred's place and above is carry forwarded. Add $21$ to $8$.

ie., $(21+8)16=2916$

$2916$ is the square of $54$.