Interpretation of math question help appreciated?

I have a question, which seems badly worded to me?

Question;

A super market has the following two offers on fruit smoothies

1/ 25% off the usual price

2/ 25% extra free

The usual price of the smoothie is £1.20 per litre carton.

The question asks;

Calculate the price per litre of smoothie under __offer (2)__

__S__urely if the offer 2 is 25% extra free, then the price is still the same at £1.20?

or is it £1.51, which then suggests that its not free?

Any help appreciated