Respuesta :
Let the original price of tablets be represented by x.
The average selling price decreased by 20% (or 0.2).
The decrease now was calculated as $122. That means the figure 122 is 20% of x. Therefore, what we have is;
[tex]\begin{gathered} \text{Original price=x} \\ \text{Decrease}=122 \\ \text{New price=x-122} \\ \text{Note that 20\% (0.2) is also 122, hence} \\ \frac{20}{100}=\frac{122}{x} \\ \text{Cross multiply and we'll have} \\ x=\frac{122\times100}{20} \\ x=610 \\ \text{The original price in 2010 is \$610} \\ \text{If the price reduced by \$122 in 2012, then } \\ \text{The price in 2012 would be }610-122=488 \\ \end{gathered}[/tex]The price in 2010 would be $610
The price in 2012 would be $488
