IP1U8 Exercise Q5

Shireen bought a mobile phone for \(\$300\) after \(20\%\) discount.

1. Calculate the original price of the mobile phone.
2. After one year, the market value of the phone has dropped to \(\$180\). Find the percentage decrease in the value of the mobile phone from its original price.
3. The old mobile phone can be exchanged for a new model at \(\$200\).
   Alternatively, Shireen can sell her old phone at \(\$180\) and buy the new model at \(\$350\).
   Determine which choice would lead to savings for Shireen.