Practicing Success
If a : b : c = 3 : 2 : 4 and b : d = 2 : 3, then find the value of $\left(\frac{a+c+d}{c-d}\right)^3$. |
729/8 216 1000 1000/27 |
1000 |
a : b : c = 3 : 2 : 4 b : d = 2 : 3 = $\left(\frac{a+c+d}{c-d}\right)^3$ = $\left(\frac{3x+4x+3x}{4x-3x}\right)^3$. = $\left(\frac{10x}{1x}\right)^3$ = \( {10 }^{3 } \) = 1000. |