Quant Exam > Quant Questions > The probability that a person will be alive a...
Start Learning for Free
The probability that a person will be alive after 20 years is 1/4 and that of his wife is 2/5. Find out the probability that both are not alive after 20 years ?
- a)7/20
- b)9/20
- c)11/20
- d)13/20
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
The probability that a person will be alive after 20 years is 1/4 and ...
prob. That man is not alive = 3/4 and that of his wife = 3/5
Prob. That both will be dead = 3/4*3/5 = 9/20
Prob. That both will be dead = 3/4*3/5 = 9/20
Most Upvoted Answer
The probability that a person will be alive after 20 years is 1/4 and ...
Given probabilities:
- Probability that a person will be alive after 20 years = 1/4
- Probability that his wife will be alive after 20 years = 2/5
Finding the probability that both are not alive after 20 years:
- Let's assume the event that the person is not alive after 20 years as A and the event that his wife is not alive after 20 years as B.
- The probability that both are not alive after 20 years can be represented as P(A and B) = P(A) * P(B) (since A and B are independent events)
Calculating the probabilities of not being alive:
- Probability that the person is not alive after 20 years = 1 - 1/4 = 3/4
- Probability that his wife is not alive after 20 years = 1 - 2/5 = 3/5
Calculating the probability that both are not alive:
- P(A and B) = (3/4) * (3/5) = 9/20
Therefore, the probability that both the person and his wife are not alive after 20 years is 9/20, which corresponds to option B.
- Probability that a person will be alive after 20 years = 1/4
- Probability that his wife will be alive after 20 years = 2/5
Finding the probability that both are not alive after 20 years:
- Let's assume the event that the person is not alive after 20 years as A and the event that his wife is not alive after 20 years as B.
- The probability that both are not alive after 20 years can be represented as P(A and B) = P(A) * P(B) (since A and B are independent events)
Calculating the probabilities of not being alive:
- Probability that the person is not alive after 20 years = 1 - 1/4 = 3/4
- Probability that his wife is not alive after 20 years = 1 - 2/5 = 3/5
Calculating the probability that both are not alive:
- P(A and B) = (3/4) * (3/5) = 9/20
Therefore, the probability that both the person and his wife are not alive after 20 years is 9/20, which corresponds to option B.
|
Explore Courses for Quant exam
|
|
Similar Quant Doubts
The probability that a person will be alive after 20 years is 1/4 and that of his wife is 2/5. Find out the probability that both are not alive after 20 years ?a)7/20b)9/20c)11/20d)13/20Correct answer is option 'B'. Can you explain this answer?
Question Description
The probability that a person will be alive after 20 years is 1/4 and that of his wife is 2/5. Find out the probability that both are not alive after 20 years ?a)7/20b)9/20c)11/20d)13/20Correct answer is option 'B'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about The probability that a person will be alive after 20 years is 1/4 and that of his wife is 2/5. Find out the probability that both are not alive after 20 years ?a)7/20b)9/20c)11/20d)13/20Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The probability that a person will be alive after 20 years is 1/4 and that of his wife is 2/5. Find out the probability that both are not alive after 20 years ?a)7/20b)9/20c)11/20d)13/20Correct answer is option 'B'. Can you explain this answer?.
The probability that a person will be alive after 20 years is 1/4 and that of his wife is 2/5. Find out the probability that both are not alive after 20 years ?a)7/20b)9/20c)11/20d)13/20Correct answer is option 'B'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about The probability that a person will be alive after 20 years is 1/4 and that of his wife is 2/5. Find out the probability that both are not alive after 20 years ?a)7/20b)9/20c)11/20d)13/20Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The probability that a person will be alive after 20 years is 1/4 and that of his wife is 2/5. Find out the probability that both are not alive after 20 years ?a)7/20b)9/20c)11/20d)13/20Correct answer is option 'B'. Can you explain this answer?.
Solutions for The probability that a person will be alive after 20 years is 1/4 and that of his wife is 2/5. Find out the probability that both are not alive after 20 years ?a)7/20b)9/20c)11/20d)13/20Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Quant.
Download more important topics, notes, lectures and mock test series for Quant Exam by signing up for free.
Here you can find the meaning of The probability that a person will be alive after 20 years is 1/4 and that of his wife is 2/5. Find out the probability that both are not alive after 20 years ?a)7/20b)9/20c)11/20d)13/20Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The probability that a person will be alive after 20 years is 1/4 and that of his wife is 2/5. Find out the probability that both are not alive after 20 years ?a)7/20b)9/20c)11/20d)13/20Correct answer is option 'B'. Can you explain this answer?, a detailed solution for The probability that a person will be alive after 20 years is 1/4 and that of his wife is 2/5. Find out the probability that both are not alive after 20 years ?a)7/20b)9/20c)11/20d)13/20Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of The probability that a person will be alive after 20 years is 1/4 and that of his wife is 2/5. Find out the probability that both are not alive after 20 years ?a)7/20b)9/20c)11/20d)13/20Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The probability that a person will be alive after 20 years is 1/4 and that of his wife is 2/5. Find out the probability that both are not alive after 20 years ?a)7/20b)9/20c)11/20d)13/20Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Quant tests.
|
|
Explore Courses for Quant exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup