UPSC Exam > UPSC Questions > If x is the number of prime numbers between 0...
Start Learning for Free
If x is the number of prime numbers between 0 and 100 and Y is the prime numbers between 90 and 100, then what is (y-2x) equal to?
a. 24
b. 25
c. 22
d. 47?
a. 24
b. 25
c. 22
d. 47?
Most Upvoted Answer
If x is the number of prime numbers between 0 and 100 and Y is the pri...
Counting Prime Numbers
To solve the problem, we first need to determine the values of x and y.
Finding x: Prime Numbers between 0 and 100
- The prime numbers between 0 and 100 are:
- 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97
- Count these numbers:
- There are 25 prime numbers.
Thus, x = 25.
Finding y: Prime Numbers between 90 and 100
- The prime numbers in this range are:
- 91 (not prime), 92 (not prime), 93 (not prime), 94 (not prime), 95 (not prime), 96 (not prime), 97 (prime), 98 (not prime), 99 (not prime), 100 (not prime)
- The only prime number here is 97.
Thus, y = 1.
Calculating (y - 2x)
- Now we compute (y - 2x):
- Substitute the values: (1 - 2 * 25) = (1 - 50) = -49.
Conclusion
The final value of (y - 2x) is -49. None of the given options (a. 24, b. 25, c. 22, d. 47) are correct. If there's been an oversight, please double-check the range or context of the problem.
To solve the problem, we first need to determine the values of x and y.
Finding x: Prime Numbers between 0 and 100
- The prime numbers between 0 and 100 are:
- 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97
- Count these numbers:
- There are 25 prime numbers.
Thus, x = 25.
Finding y: Prime Numbers between 90 and 100
- The prime numbers in this range are:
- 91 (not prime), 92 (not prime), 93 (not prime), 94 (not prime), 95 (not prime), 96 (not prime), 97 (prime), 98 (not prime), 99 (not prime), 100 (not prime)
- The only prime number here is 97.
Thus, y = 1.
Calculating (y - 2x)
- Now we compute (y - 2x):
- Substitute the values: (1 - 2 * 25) = (1 - 50) = -49.
Conclusion
The final value of (y - 2x) is -49. None of the given options (a. 24, b. 25, c. 22, d. 47) are correct. If there's been an oversight, please double-check the range or context of the problem.
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
|
|
Similar UPSC Doubts
Top Courses for UPSCView all
If x is the number of prime numbers between 0 and 100 and Y is the prime numbers between 90 and 100, then what is (y-2x) equal to?a. 24b. 25c. 22d. 47?
Question Description
If x is the number of prime numbers between 0 and 100 and Y is the prime numbers between 90 and 100, then what is (y-2x) equal to?a. 24b. 25c. 22d. 47? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about If x is the number of prime numbers between 0 and 100 and Y is the prime numbers between 90 and 100, then what is (y-2x) equal to?a. 24b. 25c. 22d. 47? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If x is the number of prime numbers between 0 and 100 and Y is the prime numbers between 90 and 100, then what is (y-2x) equal to?a. 24b. 25c. 22d. 47?.
If x is the number of prime numbers between 0 and 100 and Y is the prime numbers between 90 and 100, then what is (y-2x) equal to?a. 24b. 25c. 22d. 47? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about If x is the number of prime numbers between 0 and 100 and Y is the prime numbers between 90 and 100, then what is (y-2x) equal to?a. 24b. 25c. 22d. 47? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If x is the number of prime numbers between 0 and 100 and Y is the prime numbers between 90 and 100, then what is (y-2x) equal to?a. 24b. 25c. 22d. 47?.
Solutions for If x is the number of prime numbers between 0 and 100 and Y is the prime numbers between 90 and 100, then what is (y-2x) equal to?a. 24b. 25c. 22d. 47? 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 If x is the number of prime numbers between 0 and 100 and Y is the prime numbers between 90 and 100, then what is (y-2x) equal to?a. 24b. 25c. 22d. 47? defined & explained in the simplest way possible. Besides giving the explanation of
If x is the number of prime numbers between 0 and 100 and Y is the prime numbers between 90 and 100, then what is (y-2x) equal to?a. 24b. 25c. 22d. 47?, a detailed solution for If x is the number of prime numbers between 0 and 100 and Y is the prime numbers between 90 and 100, then what is (y-2x) equal to?a. 24b. 25c. 22d. 47? has been provided alongside types of If x is the number of prime numbers between 0 and 100 and Y is the prime numbers between 90 and 100, then what is (y-2x) equal to?a. 24b. 25c. 22d. 47? theory, EduRev gives you an
ample number of questions to practice If x is the number of prime numbers between 0 and 100 and Y is the prime numbers between 90 and 100, then what is (y-2x) equal to?a. 24b. 25c. 22d. 47? tests, examples and also practice UPSC tests.
|
|
Explore Courses for UPSC 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