Question

22. A bag contains 4 red and 8 blue marbles. A marble is drawn at random. What is the
probability of drawing.
(i) a red marble?
(ii) a blue marble
23. A bag contains 4 green, 6 black and 7 white balls. A ball is drawn at random. What is the
probability that it is either a green or a black ball?

Answer 1

Step-by-step explanation:

Q 22)

Total Marbles = 12

1) P( a red marble ) = 4/12

2) P ( Blue marble) = 8/12

Q 23)

Total balls= 17

1) P ( either green or black ball ) = 10/17

(because add green ball and black ball )

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Answer 2

Answer:

Q22. (i) 4/12=1/3. (ii) 8/12=2/3