Question

Mark (✓) against the correct answer:
(?)% of 320 is 48?
(a) 25%
(b) 15%
(c) 14%
(d) 9%

Answer 1

(b) 15%

$$\begin{gathered} \mathrm{Let}\mathrm{the}\mathrm{required}\mathrm{number}\mathrm{be}\mathrm{x}.\mathrm{Then},\mathrm{we}\mathrm{have}: \\ \left(x\%of320\right)=48 \\ \Rightarrow \left(320\times \frac{x}{100}\right)=48 \\ \Rightarrow \frac{320x}{100}=48 \\ \Rightarrow x=\left(48\times \frac{100}{320}\right) \\ \Rightarrow x=15\% \end{gathered}$$