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A bag contains six marbles: two red, two blue, and two

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A bag contains six marbles: two red, two blue, and two [#permalink] New post 05 Jan 2004, 13:39
* A bag contains six marbles: two red, two blue, and two green. If two marbles are drawn at random, what is the probability that they are the same color?
Answers:
A. 1/3
B. 1/2
C. 1/8
D. 1/4
E. 1/5

* A bag contains 3 red marbles, 3 blue marbles, and 3 green marbles. If a marble is randomly drawn from the bag and a fair, six-sided die is tossed, what is the probability of obtaining a red marble and a 6?
Answers
A. 1/15
B. 1/6
C. 1/3
D. 1/4
E. 1/18

* A certain bag contains red, blue, yellow, and green marbles. If a marble is randomly drawn from the bag, the probability of drawing a blue marble is .2, the probability of drawing a red marble is .3, and the probability of drawing a yellow marble is .1. What is the probability of drawing a green marble?
Answers
A. .5
B. .6
C. .2
D. .4
E. .3




Vivek
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 [#permalink] New post 05 Jan 2004, 13:45
1-E) It does not matter what you pick on first draw. You have 1/5 to pick a marble of the same color from the remaining 5 marbles

2-E) 1/3 * 1/6 = 1/18

3-D)
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 [#permalink] New post 05 Jan 2004, 13:49
You gotta do better than that, Vivek!!!

Paul does those in his sleep!
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 [#permalink] New post 05 Jan 2004, 13:51
Yup, those were rather easy... :2gunfire:
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  [#permalink] 05 Jan 2004, 13:51
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