23% of 8040 + 42% of 545 = ? % of 3000

Answer: Option C

Let 23% of 8040 + 42% of 545 = x% of 3000
Then,
$$\left(\frac{23}{100}\times 8040\right)+\left(\frac{42}{100}\times 545\right)$$       = $$\left(\frac{x}{100}\times 3000\right)$$
$$\begin{array}{rl}& \Rightarrow 30x=1849.2+228.9\\ & \Rightarrow 30x=2078.1\\ & \Rightarrow x=\frac{2078.1}{30}\\ & \Rightarrow x=69.27\end{array}$$