An urn contains 12 red and 18 white marbles. Two marbles are drawn without replacement one after another. What is the probability that first is red and second is white?
Answers
Answered by
0
3/10amd18/29 i think so
Srinivasredddy:
No answer is 36/145
what 145
(12*18)/(30*29)
Answered by
1
total number of marbles 12+18 = 30
probability of getting red marbles = 12/30
probability of getting white marbles=18/30
probability of getting red marbles = 12/30
probability of getting white marbles=18/30
if you had drawn out one of the marble then there will be 29 left
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