Question

bag contains 5 white, 4 red and 6 black balls. A ball is drawn at random.

Find the probability that it

is a red or a black ball.​

Answer 1

Answer:

white=⅕,red=¼,black=⅙

Answer 2

No of white balls = 5

No of red balls = 4

No of black balls = 6

s = No of white balls + No of red balls + No of black bal

= 5 + 4 + 6

n(s) = 15

Event A = red or black ball

= no of red balls+ no of black balls

= 4+6

n(A) = 10

p(A) = n(A) /n(s)

= 10/15

= 2 / 3

the probability of red or black ball is 2/3.

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