Question 1150787
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Of 188 people who voted, 15 wanted neither town water nor town sewer.  So 188-15=173 people wanted either town water or town sewer or both.<br>
The number of people who voted for town water, plus the number who voted for town sewer, is 149+117 = 266.<br>
Since there were 266 votes for both town water and town sewer from 173 people who voted for at least one of them, the number who voted for both town water and town sewer was 266-173 = 93.<br>