At an election 2 candidates are participated a candidate got 30% of votes and defeated by 5000 votes. 100 votes are invalid. Find the total polled votes?  Choose the correct choice from the following answers:
A) 11520  B) 12600  C) 15000  D) 13560  E) 12560

Rationale: winners votes = 100 - 30 = 70 % invalid votes = 100 polled votes = [ ( 100 * 5000 ) / ( 2 * 70 - 100 ) ] + 100 = 12600 answer is b
Answer: B