Hi Marina, I noticed exactly the same thing. I’m pretty sure the answer in the book is wrong, which will mean that parts of the rest of your answer will be wrong too! Just ignore it and try a different question instead. Good luck!
hello, I am just doing the same question and was also wondering how the hell did they get this number 323000 ?! 🙂 i guess it must be a typo error.. glad i’m not the only one who spotted that.. uff 🙂 good luck in your exams!