Two or more essences out of a stock five essences-- L, M, N, O, and P are used in making all perfumes by a manufacturer. He has learned that for a blend of essences to be agreeable it should comply with all the rules listed below.
A perfume containing L, should also contain the essence N, and the quantity of N should be twice as that of L.
A perfume containing M, must also have O as one of its components and they should be in equal proportion.
A single perfume should never contain N as well as O.
O and P should not be used together.
A perfume containing the essence P should contain P in such a proportion that the total amount of P present should be greater than the total amount of the other essence or essences used.
Among the following, the addition of which combination would make an unagreeable perfume containing two parts N and one part P agreeable?
In August 1980, according to a new your. Times/CBS news poll, 36 percent of the voters called themselves Republicans or said they were independents leaning toward being Republicans. In November 1984, the Republican figure rose to 47 percent. But in the latest Times/CBS survey, the Republicans were down to 38 percent. Therefore, the Democrats are likely to win the next election.
Which of the following, if true, would most seriously weaken the above conclusion ?
