Practicing Success
If $\frac{a}{b}=\frac{1}{2}$ and $\frac{b}{c}=\frac{3}{4}$, then find the value of $\frac{a^2-c^2}{ac-bc}$. |
$\frac{23}{56}$ $\frac{55}{24}$ $\frac{24}{55}$ $\frac{56}{23}$ |
$\frac{55}{24}$ |
$\frac{a}{b}=\frac{1}{2}$ and $\frac{b}{c}=\frac{3}{4}$ a : b = 1 : 2 b : c = 3 : 4 ------------------ a : b : c = 3 : 6 : 8 Now put all the values in the required equation, $\frac{a^2-c^2}{ac-bc}$ = $\frac{3^2-8^2}{24-48}$ = $\frac{55}{24}$ |