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# In each production lot for a certain toy, 25 percent of the

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Manager
Joined: 07 Jul 2003
Posts: 56
In each production lot for a certain toy, 25 percent of the [#permalink]

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09 Feb 2004, 12:43
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

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

Director
Joined: 03 Jul 2003
Posts: 652

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09 Feb 2004, 12:58

Assume Total = 100

N(R) = N(R&A) + N(R&B) = 25
N(Bl) = N(Bl&A) + N(Bl&B) = 75
N(A) = N(R&A) + N(Bl&A) =50
N(B) = N(R&B) + N(Bl&B) 50
N(R&A) = 10

Solving these eqn, gives N(Bl&B) = 35.

Where,
N(X) = Number of X
R = red,
Bl =Blue
A = type A
B = type B
09 Feb 2004, 12:58
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