Answer:
42
Explanation:
Of 96 members, you want to know the number that did not vote if 1/6 voted in favor and 2/5 voted against.
Votes
The votes in favor were 1/6 of 96:
1/6 · 96 = 16
The votes against were 2/5 of 96:
2/5 · 96 = 38.4 ≈ 38
Abstentions
The number who did not vote is the difference between the total membership and those who did vote:
non-voters = 96 -16 -38 = 42
42 members did not vote.