Correct Answer - Option 5 : 10000
GIVEN:
% of people who didn't cast their votes = 20%
votes in favor of winner = 61% of votes polled
the margin of win = 1760 votes
EXPLANATION:
let the total number of votes be 100 ratio
\(votes \space polled = 80 ratio\\winner's\space share = 61\% \space of\space votes\space polled \\loser's \space share=39\%\space of \space votes\space polled \\margin = 61 - 39 = 22\%\space of \space votes\space polled \\22\%= 1760\Rightarrow 100\%=8000 \\80\%\space of \space list\space(20\%\space didn't\space cast)= 8000\\\therefore100\% \space of \space list=10000\)