the last GATE exam i got a Q. like this, how can i solve it in the proper way?
There are two candidates P and Q in an election. During the campaign, 40% of the voters promised to vote for P,
and rest for Q. However, on the day of election 15% of the voters went back on their promise to vote for P and instead
voted for Q. 25% of the voters went back on their promise to vote for Q and instead voted for P. Suppose, P lost by 2
votes, then what was the total number of voters?
the An. (C) 90