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A box contains 80 discs, numbered from 1 to 90. If one disc is drawn at random from the box, the probability that it bears a prime number less than 30, is:
- a)1/8
- b)9/80
- c)11/80
- d)3/20
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
A box contains 80 discs, numbered from 1 to 90. If one disc is drawn a...
Total number outcomes = 80
i.e., n(S) = 80
Prime number less than 30 = 2, 3, 5, 7, 11,
13, 17, 19, 23, 29
i.e., n(E) = 10
∴ Required probability,
i.e., n(S) = 80
Prime number less than 30 = 2, 3, 5, 7, 11,
13, 17, 19, 23, 29
i.e., n(E) = 10
∴ Required probability,
Most Upvoted Answer
A box contains 80 discs, numbered from 1 to 90. If one disc is drawn a...
Probability of drawing a prime number less than 30 from a box containing 80 discs numbered from 1 to 90 is to be found.
Total number of discs in the box = 80
Total number of prime numbers less than 30 = 10 (2, 3, 5, 7, 11, 13, 17, 19, 23, 29)
To find the probability, we can use the formula:
Probability = Number of favorable outcomes / Total number of possible outcomes
Finding the number of favorable outcomes:
The number of favorable outcomes is the number of discs in the box that have prime numbers less than 30.
Number of favorable outcomes = 10
Finding the total number of possible outcomes:
The total number of possible outcomes is the total number of discs in the box.
Total number of possible outcomes = 80
Applying the formula, the probability is:
Probability = Number of favorable outcomes / Total number of possible outcomes
Probability = 10 / 80
Simplifying the fraction, we get:
Probability = 1 / 8
Therefore, the probability that the disc drawn from the box bears a prime number less than 30 is 1/8.
Total number of discs in the box = 80
Total number of prime numbers less than 30 = 10 (2, 3, 5, 7, 11, 13, 17, 19, 23, 29)
To find the probability, we can use the formula:
Probability = Number of favorable outcomes / Total number of possible outcomes
Finding the number of favorable outcomes:
The number of favorable outcomes is the number of discs in the box that have prime numbers less than 30.
Number of favorable outcomes = 10
Finding the total number of possible outcomes:
The total number of possible outcomes is the total number of discs in the box.
Total number of possible outcomes = 80
Applying the formula, the probability is:
Probability = Number of favorable outcomes / Total number of possible outcomes
Probability = 10 / 80
Simplifying the fraction, we get:
Probability = 1 / 8
Therefore, the probability that the disc drawn from the box bears a prime number less than 30 is 1/8.
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Community Answer
A box contains 80 discs, numbered from 1 to 90. If one disc is drawn a...
Prime numbers = 9 ( 1,2,3,5,7,11,13,17,19,23,29)
number of disc=80
Answer is 9/80
number of disc=80
Answer is 9/80
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A box contains 80 discs, numbered from 1 to 90. If one disc is drawn at random from the box, the probability that it bears a prime number less than 30, is:a)1/8b)9/80c)11/80d)3/20Correct answer is option 'A'. Can you explain this answer?
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A box contains 80 discs, numbered from 1 to 90. If one disc is drawn at random from the box, the probability that it bears a prime number less than 30, is:a)1/8b)9/80c)11/80d)3/20Correct answer is option 'A'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A box contains 80 discs, numbered from 1 to 90. If one disc is drawn at random from the box, the probability that it bears a prime number less than 30, is:a)1/8b)9/80c)11/80d)3/20Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A box contains 80 discs, numbered from 1 to 90. If one disc is drawn at random from the box, the probability that it bears a prime number less than 30, is:a)1/8b)9/80c)11/80d)3/20Correct answer is option 'A'. Can you explain this answer?.
A box contains 80 discs, numbered from 1 to 90. If one disc is drawn at random from the box, the probability that it bears a prime number less than 30, is:a)1/8b)9/80c)11/80d)3/20Correct answer is option 'A'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A box contains 80 discs, numbered from 1 to 90. If one disc is drawn at random from the box, the probability that it bears a prime number less than 30, is:a)1/8b)9/80c)11/80d)3/20Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A box contains 80 discs, numbered from 1 to 90. If one disc is drawn at random from the box, the probability that it bears a prime number less than 30, is:a)1/8b)9/80c)11/80d)3/20Correct answer is option 'A'. Can you explain this answer?.
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A box contains 80 discs, numbered from 1 to 90. If one disc is drawn at random from the box, the probability that it bears a prime number less than 30, is:a)1/8b)9/80c)11/80d)3/20Correct answer is option 'A'. Can you explain this answer?, a detailed solution for A box contains 80 discs, numbered from 1 to 90. If one disc is drawn at random from the box, the probability that it bears a prime number less than 30, is:a)1/8b)9/80c)11/80d)3/20Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of A box contains 80 discs, numbered from 1 to 90. If one disc is drawn at random from the box, the probability that it bears a prime number less than 30, is:a)1/8b)9/80c)11/80d)3/20Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
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