# math

a box contains 63 marbles 21 brown, 21 purple and 21 while what is the probability of picking a purple marble on the 1st attempt anor a brown marble on the second attempt?

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3. 👁 47
1. purple- 1 in 63
brown- 1 in 62

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posted by Kara
2. purple- 21/63 reduced to 1/3
brown- 21/62

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posted by Becky
3. purple- 1/3
brown 21/62

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posted by ashley
4. the probability of picking the 2 marbles the way you described it is

21/63 * 21/62

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posted by Reiny

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