The number of mobile phones sold of Company A during July is approximately what percent of the number of mobile phones sold of company A during December?

Answer: Option E

Number of mobile phones sold by A during July
$$\begin{array}{rl}& =45000\times \frac{17}{100}\times \frac{8}{15}\\ & =4080\end{array}$$
Number of mobile phones sold by A during December
\begin{aligned} & = 45000\times\frac{16}{100}\times\frac{7}{16} \\ & = 3150 \\ & \text{Let 4080 = }x\%\text{ of 3150} \\ & \text{Then,} \\ & \frac{x}{100}\times3150 = 4080 \\ & \Rightarrow x = \frac{4080\times2}{63} \\ & \Rightarrow x = 129.5 \\ & \Rightarrow x \approx 130 \\ & \text{Required percentage = 130%}\\\end{aligned}