UPSC Exam > UPSC Questions > There are 4 orange balls, 5 blue balls and 3 ...
Start Learning for Free
There are 4 orange balls, 5 blue balls and 3 white balls are there in a bag. Two balls are selected at random. What is the probability of getting both the balls being blue?
- a)5/33
- b)3/33
- c)3/11
- d)3/5
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
There are 4 orange balls, 5 blue balls and 3 white balls are there in ...
Given information:
- 4 orange balls
- 5 blue balls
- 3 white balls
- Two balls are selected at random
To find: Probability of getting both balls being blue
Solution:
Total number of balls in the bag = 4 + 5 + 3 = 12
Number of ways to select two balls out of 12 = 12C2 = (12*11)/(2*1) = 66
Number of ways to select 2 blue balls out of 5 = 5C2 = (5*4)/(2*1) = 10
Therefore, the probability of getting both balls being blue = (Number of ways to select 2 blue balls out of 5) / (Number of ways to select two balls out of 12) = 10/66 = 5/33
Therefore, the correct option is (a) 5/33.
HTML Code:
- 4 orange balls
- 5 blue balls
- 3 white balls
- Two balls are selected at random
To find: Probability of getting both balls being blue
Solution:
Total number of balls in the bag = 4 + 5 + 3 = 12
Number of ways to select two balls out of 12 = 12C2 = (12*11)/(2*1) = 66
Number of ways to select 2 blue balls out of 5 = 5C2 = (5*4)/(2*1) = 10
Therefore, the probability of getting both balls being blue = (Number of ways to select 2 blue balls out of 5) / (Number of ways to select two balls out of 12) = 10/66 = 5/33
Therefore, the correct option is (a) 5/33.
HTML Code:
Given information:
- 4 orange balls
- 5 blue balls
- 3 white balls
- Two balls are selected at random
To find:
Probability of getting both balls being blue
Solution:
Total number of balls in the bag = 4 + 5 + 3 = 12
Number of ways to select two balls out of 12 = 12C2 = (12*11)/(2*1) = 66
Number of ways to select 2 blue balls out of 5 = 5C2 = (5*4)/(2*1) = 10
Therefore, the probability of getting both balls being blue = (Number of ways to select 2 blue balls out of 5) / (Number of ways to select two balls out of 12) = 10/66 = 5/33
Therefore, the correct option is (a) 5/33.
Free Test
FREE
| Start Free Test |
Community Answer
There are 4 orange balls, 5 blue balls and 3 white balls are there in ...
P(B)=5c2/12c2
=10/66
hence,p(B)=5/33
=10/66
hence,p(B)=5/33
Attention UPSC Students!
To make sure you are not studying endlessly, EduRev has designed UPSC study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in UPSC.
|
Explore Courses for UPSC exam
|
|
Top Courses for UPSCView all
There are 4 orange balls, 5 blue balls and 3 white balls are there in a bag. Two balls are selected at random. What is the probability of getting both the balls being blue?a)5/33b)3/33c)3/11d)3/5Correct answer is option 'A'. Can you explain this answer?
Question Description
There are 4 orange balls, 5 blue balls and 3 white balls are there in a bag. Two balls are selected at random. What is the probability of getting both the balls being blue?a)5/33b)3/33c)3/11d)3/5Correct answer is option 'A'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about There are 4 orange balls, 5 blue balls and 3 white balls are there in a bag. Two balls are selected at random. What is the probability of getting both the balls being blue?a)5/33b)3/33c)3/11d)3/5Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for There are 4 orange balls, 5 blue balls and 3 white balls are there in a bag. Two balls are selected at random. What is the probability of getting both the balls being blue?a)5/33b)3/33c)3/11d)3/5Correct answer is option 'A'. Can you explain this answer?.
There are 4 orange balls, 5 blue balls and 3 white balls are there in a bag. Two balls are selected at random. What is the probability of getting both the balls being blue?a)5/33b)3/33c)3/11d)3/5Correct answer is option 'A'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about There are 4 orange balls, 5 blue balls and 3 white balls are there in a bag. Two balls are selected at random. What is the probability of getting both the balls being blue?a)5/33b)3/33c)3/11d)3/5Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for There are 4 orange balls, 5 blue balls and 3 white balls are there in a bag. Two balls are selected at random. What is the probability of getting both the balls being blue?a)5/33b)3/33c)3/11d)3/5Correct answer is option 'A'. Can you explain this answer?.
Solutions for There are 4 orange balls, 5 blue balls and 3 white balls are there in a bag. Two balls are selected at random. What is the probability of getting both the balls being blue?a)5/33b)3/33c)3/11d)3/5Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of There are 4 orange balls, 5 blue balls and 3 white balls are there in a bag. Two balls are selected at random. What is the probability of getting both the balls being blue?a)5/33b)3/33c)3/11d)3/5Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
There are 4 orange balls, 5 blue balls and 3 white balls are there in a bag. Two balls are selected at random. What is the probability of getting both the balls being blue?a)5/33b)3/33c)3/11d)3/5Correct answer is option 'A'. Can you explain this answer?, a detailed solution for There are 4 orange balls, 5 blue balls and 3 white balls are there in a bag. Two balls are selected at random. What is the probability of getting both the balls being blue?a)5/33b)3/33c)3/11d)3/5Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of There are 4 orange balls, 5 blue balls and 3 white balls are there in a bag. Two balls are selected at random. What is the probability of getting both the balls being blue?a)5/33b)3/33c)3/11d)3/5Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice There are 4 orange balls, 5 blue balls and 3 white balls are there in a bag. Two balls are selected at random. What is the probability of getting both the balls being blue?a)5/33b)3/33c)3/11d)3/5Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice UPSC tests.
|
|
Explore Courses for UPSC exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup