Explanation:

Coreect option:4

2 candidates contested an election. The winning candidate got 52% of the valid votes and won by a margin of 360 votes. If I 0%

of votes were declared invalid, then what was the total number of votes polled?

Let total vote=100x

invalid votes=10%=10x

Valid votes=90x

The winning candidate got 52% of valid votes

So the other candidate got 100-52=48% of valid votes

The winner won by margin of =52-48=4%

4% of valid vote=360

4% of 90x=360

x= 360* 100/(4*90) =100

Hence total votes=100x=10000