Sales vs profit

Apple sells 22 percent less computes than the Acer but the profit from their sales is 2.2 times higher than Acer.

How many times are Apple computer more expensive than Acer?

Correct result:

n =  2.8

Solution:

$$\begin{gathered} k=1-22\mathrm{/}100=0.78 \\ knp=2.2p \\ kn=2.2 \\ n={\displaystyle \frac{2.2}{k}}={\displaystyle \frac{2.2}{0.78}}=2.8 \end{gathered}$$

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