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GRV99 wrote:. In each production lot for a certain toy, 25 percent of the toys are red and 75 percent of the toys are blue. Half the toys are size A and half are size B. If 10 out of a lot of 100 toys are red and size A, how many of the toys are blue and size B?
(A) 15
(B) 25
(C) 30
(D) 35
(E) 40
[spoiler]OA:D[/spoiler]
For questions where there is a population, where each member of the population has two characteristics associated with it, we can use the Double Matrix Method to solve the question.GRV99 wrote:. In each production lot for a certain toy, 25 percent of the toys are red and 75 percent of the toys are blue. Half the toys are size A and half are size B. If 10 out of a lot of 100 toys are red and size A, how many of the toys are blue and size B?
(A) 15
(B) 25
(C) 30
(D) 35
(E) 40
[spoiler]OA:D[/spoiler]
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