Subject-verb agreement

[Rajesh43]

May you tell me which one of the following is correct?

# The rest of the books was published.

# The rest of the books were published.

Thanks,

[Mister Micawber]

Would/Could you tell me which one of the following is correct?
May I ask which one of the following is correct?

The rest of the sugar was used.
The rest of the books were published.
_________________
Native English teacher at Mister Micawber's

[Baazeegar]

The rest of the books were published -- is correct