A two-thirds vote requires which of the following?

• A. More than half of legal votes cast.
• B. At least two-thirds of legal votes cast.
• C. The largest number of votes cast.
• D. All votes cast must be in agreement.

Answer: (B)

Two-thirds means a supermajority: the number of votes in favor must be at least two-thirds of the legal votes that were actually counted. The key is using the votes that are legally cast in the denominator, so abstentions and invalid ballots don’t dilute the threshold. This is different from a simple majority (more than half), from requiring the largest count (a plurality), or from unanimity (everyone agreeing). For example, with 60 legal votes counted, two-thirds equals 40, so you need 40 or more in favor. If there are 45 legal votes, two-thirds is 30, so 30 in favor would suffice.