In an election between Ram and Shyamal, one got 30% of the total votes and thus lost by 900 votes. If 90% of the voters voted and no invalid or illegal votes were cast, then what was the numbers of voters in the voting list?

2500

Let total number of votes = 100x

Total cast votes = 90% of 100x = 90x

Votes of Looser candidate = 30% of 90x = 27x

Votes of winner candidate = 90x - 27x = 63x

According to question ,

63x - 27x = 36x

36x = 900   (given)

x = 25

100x = 2500