SELECT * FROM question_mgmt as q WHERE id=9786 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=9 AND subId=6 AND chapterId=282 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)
A box contains 5 red marbles, 8 white marbles and 4 green marbles. One marble is taken out of the box at random. What is the probability that the marble taken out will be (i) red ? (ii) white ? (iii) not green?
Total no. of marbles = 17
(i) Total no. of red marbles = 5
Probability of getting red marbles = 5/17
(ii) Total no. of white marbles = 8
Probability of getting white marbles = 8/17
(iii) No. of not green marbles
= total no. of marbles – no. of green marbles
= 17 – 4= 13
Probability of getting not green marbles = 13/17
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