initial discount: 50 % off
Second discount: 50% of the final price
Elena Is wrong, she can't get anything she wants for free, but for 75%
For example:
If a t-shirt original price is $100
With the first discount = 100 x (50/100 ) = 50
Second discount = 50 x (50/100) = 25
Total discount amount = 75
100-75 = 25
Final price = $25 ( a 75% discount from $100)