Question

A box contain 6 red ball 7 white ball and 5 black ball. A ball is drawn random. Find the probability that ball is not red

Answer 1

Answer:

total number of = 6+7+5= 18 = n(s)

the probability of ball that is not red

= 18-6= 12

p(e) = n(e)/n(s)

12/18

= 6/9

=2/3

0.6666......

Answer 2

Hey Buddy

Here's the Answer

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Box contains -

6 red balls

7 white balls

5 black balls

Total balls = 6 + 7 + 5 = 18 balls

Number of non red balls = number of white and black balls

So,

Number of non red balls = 7 + 5

Number of non red balls = 12 balls

Probability = outcome required / total outcomes

Probability = 12 / 18

Probability = 2 / 3

PEACE

:)