Question

Find out the solution of the following equation.
$\frac{z}{5}-\frac{z}{6}=8+\frac{z}{15}$

• A. 120
• B. -620
• C. 220
• D. -240

Answer 1

The correct option is D -240

The given equation is,
$\Rightarrow \frac{z}{5}-\frac{z}{6}=8+\frac{z}{15}\Rightarrow \frac{z}{5}-\frac{z}{6}-\frac{z}{15}=8\Rightarrow \frac{6z-5z-2z}{30}=8\Rightarrow \frac{-z}{30}=8\Rightarrow -z=8\times 30\Rightarrow z=-240$

$\therefore$ The solution of the equation is -240.