A bag contains 3 white and 5 black and 7 red balls. Two balls are drown at random. Find the probability that both are red
Anonymous:
answer is 1/5
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total number of possible outcomes = 3+5+7=15
total number of favourable outcomes=7
therefore, favourable outcomes/possible outcomes
the ans is 7/15.
total number of favourable outcomes=7
therefore, favourable outcomes/possible outcomes
the ans is 7/15.
wrong
ok very sorry
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