21. Goud polled 33, 000 first preferential votes to win the Karimnagar graduates'seat. 22. Sri Lanka's complex electoral system involves a mix of preferential voting and proportional representation. 23. From then until 1942 an unusual form of preferential voting called the contingent vote was used. 24. Preferential voting was first put to use in the William Gibson of the Victorian Farmers Union.25. As leader of the preferential voting . 26. This coalition won the preferential vote . 27. He obtained 1, 129 preferential votes , the most voted MNI candidate from the constituency. 28. The first candidate on the list is not required to receive preferential votes to be elected. 29. To prevent the situation from reoccurring, the government changed the voting system to the preferential vote . 30. In preferential votes , which is more than all the other candidates who participated in this election.