THIS MONTH'S QUIZ
1. There were three nominations A, B and C for two places
on a committee. The electors each voted for one pair of
candidates and the result was A 10 votes, B 9 votes and
C 7 votes. How many electors voted for both the two
candidates A and B?
2. There were four nominations for three places on another
committee, each elector voting for three of them. If A
got 30 votes, B got 34, C got 29 and D got 27, how many
electors voted for the three candidates A, B and C?
3. There were four nominations for two places on yet another
committee, each elector voting for two of them. A got 31
votes, B got 23, C got 29 and D got 27. The number of
electors voting for A and B was the same as the number
voting for B and D, and was one more than the number
voting for B and C. How many voted for both A and B?