in a box there are 5 red balls 2white balls and 4 blue balls find the probability not getting a white ball
I. probability of blue ball
2. probability of yellow ball
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Step-by-step explanation:
Since, total no. of balls = 5+7+4+2 = 18
(i) No. of balls that are white or blue = 5+2 = 7
∴ Required probability =
18
7
(ii) No. of balls that are red or black = 7+4 = 11
∴ Required probability =
18
11
(iii) No. of balls that are not white = 7+4+2 = 13
∴ Required probability =
18
13
(iv) No. of balls that are neither white nor black = 7+2 = 9
∴ Required probability =
18
9
=
2
1
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