UPSC Exam  >  UPSC Questions  >  A box contains one dozen donuts. Four of the ... Start Learning for Free
A box contains one dozen donuts. Four of the donuts are chocolate, four are glazed, and four are jelly. If two donuts are randomly selected from the box, one after the other, what is the probability that both will be jelly donuts?
  • a)
    1/11
  • b)
    1/9
  • c)
    1/3
  • d)
    2/3
  • e)
    8/9
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A box contains one dozen donuts. Four of the donuts are chocolate, fou...
To determine the probability that jelly donuts will be chosen on the first and second selections, we must find the probability of both events and multiply them together. The probability of picking a jelly donut on the first pick is 4/12. However, the probability of picking a jelly donut on the second pick is NOT 4/12. If a jelly donut is selected on the first pick, the number of donuts in the box has decreased from 12 to 11, and the number of jelly donuts has decreased from 4 to 3. Thus, the probability of picking a jelly donut on the second pick is 3/11. 
Since overall probability is calculated by multiplying the probabilities of both events, the probability of picking two jelly donuts is 4/12 × 3/11 = 12/132 = 1/11. 
View all questions of this test
Explore Courses for UPSC exam

Top Courses for UPSC

A box contains one dozen donuts. Four of the donuts are chocolate, four are glazed, and four are jelly. If two donuts are randomly selected from the box, one after the other, what is the probability that both will be jelly donuts?a)1/11b)1/9c)1/3d)2/3e)8/9Correct answer is option 'A'. Can you explain this answer?
Question Description
A box contains one dozen donuts. Four of the donuts are chocolate, four are glazed, and four are jelly. If two donuts are randomly selected from the box, one after the other, what is the probability that both will be jelly donuts?a)1/11b)1/9c)1/3d)2/3e)8/9Correct 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 A box contains one dozen donuts. Four of the donuts are chocolate, four are glazed, and four are jelly. If two donuts are randomly selected from the box, one after the other, what is the probability that both will be jelly donuts?a)1/11b)1/9c)1/3d)2/3e)8/9Correct 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 A box contains one dozen donuts. Four of the donuts are chocolate, four are glazed, and four are jelly. If two donuts are randomly selected from the box, one after the other, what is the probability that both will be jelly donuts?a)1/11b)1/9c)1/3d)2/3e)8/9Correct answer is option 'A'. Can you explain this answer?.
Solutions for A box contains one dozen donuts. Four of the donuts are chocolate, four are glazed, and four are jelly. If two donuts are randomly selected from the box, one after the other, what is the probability that both will be jelly donuts?a)1/11b)1/9c)1/3d)2/3e)8/9Correct 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 A box contains one dozen donuts. Four of the donuts are chocolate, four are glazed, and four are jelly. If two donuts are randomly selected from the box, one after the other, what is the probability that both will be jelly donuts?a)1/11b)1/9c)1/3d)2/3e)8/9Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A box contains one dozen donuts. Four of the donuts are chocolate, four are glazed, and four are jelly. If two donuts are randomly selected from the box, one after the other, what is the probability that both will be jelly donuts?a)1/11b)1/9c)1/3d)2/3e)8/9Correct answer is option 'A'. Can you explain this answer?, a detailed solution for A box contains one dozen donuts. Four of the donuts are chocolate, four are glazed, and four are jelly. If two donuts are randomly selected from the box, one after the other, what is the probability that both will be jelly donuts?a)1/11b)1/9c)1/3d)2/3e)8/9Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of A box contains one dozen donuts. Four of the donuts are chocolate, four are glazed, and four are jelly. If two donuts are randomly selected from the box, one after the other, what is the probability that both will be jelly donuts?a)1/11b)1/9c)1/3d)2/3e)8/9Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A box contains one dozen donuts. Four of the donuts are chocolate, four are glazed, and four are jelly. If two donuts are randomly selected from the box, one after the other, what is the probability that both will be jelly donuts?a)1/11b)1/9c)1/3d)2/3e)8/9Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice UPSC tests.
Explore Courses for UPSC exam

Top Courses for UPSC

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev