Instructions

The year is 2089. Beijing, London, New York, and Paris are in contention to host the 2096 Olympics. The eventual winner is determined through several rounds of voting by members of the IOC with each member representing a different city. All the four cities in contention are also represented in IOC.

• In any round of voting, the city receiving the lowest number of votes in that round gets eliminated. The survivor after the last round of voting gets to host the event.

• A member is allowed to cast votes for at most two different cities in all rounds of voting combined. (Hence, a member becomes ineligible to cast a vote in a given round if both the cities (s)he voted for in earlier rounds are out of contention in that round of voting.)

• A member is also ineligible to cast a vote in a round if the city (s)he represents is in contention in that round of voting.

• As long as the member is eligible, (s)he must vote and vote for only one candidate city in any round of voting.The following incomplete table shows the information on cities that received the maximum and minimum votes in different rounds, the number of votes cast in their favour, and the total votes that were cast in those rounds.It is also known that:

• All those who voted for London and Paris in round 1, continued to vote for the samecities in subsequent rounds as long as these cities were in contention. 75% of those whovoted for Beijing in round 1, voted for Beijing in round 2 as well.

• Those who voted for New York in round 1, voted either for Beijing or Paris in round 2.

• The difference in votes cast for the two contending cities in the last round was 1.

• 50% of those who voted for Beijing in round 1, voted for Paris in round 3.

Question 49

# What percentage of members from among those who voted for New York in round 1, voted for Beijing in round 2?

Solution

Let us consider that there are 'm' members totally,there are 4 cities so total number of voters in round 1 will be m - 4, as 4 members of the cities are not allowed to vote.In the same way we have in total m - 3 members who will vote in the 2nd round.For the 3rd round, we have m - 2 - r members voting, r - number of of voters who voted for NY and Beijing in Round 1 and 2. According to given conditions these voters can't vote again. Also ,m - 3 = 83. So in total there were m = 86 members. And 83 people voted in 1st round and it is given that there are 75 votes in 3rd round . So we have r=9 i.e. 9 voters who voted for Ny in 2st round and beijing in 2nd round.
Also it is given that Ny voters in Round 1 voted either for Beijing or Paris and there are 9 voters who voted for NY in round 1, voted for Beijing in round 2.So 9*100/12 = 75% . hence option D.

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