a boxg contains 5 green,8yellow and 7 brown balls. one ball is taken out from a box at random.what is the probability that the ball taken out is (i) yellow? (ii) brown(iii) neither green not brown ?(iv) not brown?
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the probability of getting one ball is1/20
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(i) 8/20=2/5
(ii) 7/20
(iii) 8/20=2/5
(iv) 13/20
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