Q. 614.5( 4 Votes )
Cards numbered 1 to 30 are put in a bag. A card is drawn at random from this bag. Find the probability that the number on the drawn card is
(i) not divisible by 3
(ii) a prime number greater than 7
(iii) not a perfect square number.
Answer :
Total number of possible outcomes, n(S) = 30
(i) Number of favorable outcomes of numbers divisible by 3, n(E) = 10
Probability of getting a number not divisible by 3 = 1 – P(E)
(ii) Number of favorable outcomes, n(E) = 6
(iii) Number of favorable outcomes of getting a perfect square, n(E) = 5
Probability of not getting a perfect square = 1 – P(E)
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
PREVIOUSA group consists of 12 persons, of which 3 are extremely patient, other 6 are extremely honest and rest are extremely kind. A person from the group is selected at random. Assuming that each person is equally likely to be selected, find the probability of selecting a person who is (i) extremely patient (ii) extremely kind or honest. Which of the above you prefer more.NEXTA dice is rolled twice. Find the probability that(i) 5 will not come up either time.(ii) 5 will come up exactly one time
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
















Try 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