Q. 344.0( 6 Votes )
A bag contains 5 red, 8 white and 7 black balls. A ball is drawn at random from the bag. Find the probability that the drawn ball is (i) red or white (ii) not black (iii) neither white nor black.
Answer :
Total number of possible outcomes, n(S) = 20
(i) Number of favorable outcomes, n(E) = 13
(ii) Number of events of getting a black ball, n(E) = 7
Probability of not getting a black ball = 1 – P(E)
(iii) Number of favorable outcomes, n(E) = 5
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
PREVIOUSThere are 30 cards, of same size, in a bag on which numbers 1 to 30 are written. One card is taken out of the bag at random. Find the probability that the number on the selected card is not divisible by 3.NEXTFind the probability that a number selected from the number 1 to 25 is not a prime number when each of the given numbers is equally likely to be selected.
Related Videos
Smart Revision | Quiz on Probability37 mins
NCERT | How Probability Can Help You Score Marks?44 mins
Introduction to Probability53 mins
NCERT | Quiz on Probability47 mins
Quiz | Imp. Qs. of Probability37 mins
Solve RD Sharma Problems 2x Faster30 mins
Let's understand Probability40 mins
When Chance is called Probability48 mins
Smart Revision | Quiz on Probability37 minsNCERT | How Probability Can Help You Score Marks?44 minsIntroduction to Probability53 minsNCERT | Quiz on Probability47 minsQuiz | Imp. Qs. of Probability37 minsSolve RD Sharma Problems 2x Faster30 minsLet's understand Probability40 minsWhen Chance is called Probability48 minsTry our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
RELATED QUESTIONS :
Which of the following amongst the given options cannot be the probability of an event:
(i) 1.01 (ii) 67%
(iii) -0.5 (iv) 
(v) 0.3
KC Sinha - Mathematics