Question

# A bag contains $$3$$ black, $$4$$ white and $$5$$ red balls. One ball is drawn at random. Find the probability that it is either a black ball or red ball.

A
23
B
512
C
112
D
12

Solution

## The correct option is A $$\dfrac {2}{3}$$A bag contains 3 black, 4 white and 5 red balls. One ball is drawn at random. Find the probability that it is either a black ball or red ball.number of red and black ball/(total number of balls)number of red and black balls$$=5+3$$total number of balls $$=5+3+4$$$$P(E)=\dfrac{8}{12}=\dfrac{2}{3}$$Mathematics

Suggest Corrections

0

Similar questions
View More

People also searched for
View More