Question

A bag contains
5 black balls, 7 blue blog balls, bred balls, one
ball is drawn at Mandom from the bag find the probalite
that the ball drown is
ů Blue on white
(1) Not Blue
(iii) Nither black nor blue​

Answer 1

Answer:

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