Question

If $\frac{P-2l}{2}=b$, then $l$ can be written as

• A. $\frac{P+2b}{2}$
• B. $\frac{2P+b}{2}$
• C. $\frac{2P-b}{2}$
• D. $\frac{P-2b}{2}$

Answer 1

The correct option is D $\frac{P-2b}{2}$

Given equation is: $b=\frac{P-2l}{2}$

$2b=P-2l$

$2l=P-2b$

$\therefore l=\frac{P-2b}{2}$