I have a question regarding the sample quiz II:

Question 6.) Is there any stock re-issuance using the stocks stored in the treasury stock account?If yes, how many shares?

The solution says that the correct answer is 20,5. But from my point of view it should be 10,6. As the balance position treasury stock (on page 5) states that the shares issued for employee savings and option plans are 10,6. Do i miss something or is there a typo in the solution?

Looking forward to your help.