In an election between two candidates, 5% of the registered voters did not cast their vote. 10% of the votes were found to be either invalid or of NOTA. The winning candidate received 60% votes in his favour and won the election by 17271 votes. Find the number of registered voters.

A. 90252

B. 100000

C. 101000

D. 102500

Answer: Option C

Solution (By Examveda Team)

$$\eqalign{ & 20\% {\text{ of }}885 = 17271 \cr & 855 \times \frac{{20}}{{100}} = 17271 \cr & 1 \to 101 \cr & \therefore 1000 = 101000 \cr} $$