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120 विद्यार्थियों के एक समूह का सर्वेक्षण किया गया और यह पाया गया कि सर्वेक्षण में शामिल प्रत्येक विद्यार्थी ने तीन स्थानों, नामतः शिमला, नैनीताल और दार्जिलिंग में से कम से कम एक स्थान पर जाना पसंद किया।
34 विद्यार्थी शिमला, 52 विद्यार्थी नैनीताल और 58 विद्यार्थी दार्जिलिंग जाना पसंद करते हैं। 15 विद्यार्थी शिमला एवं नैनीताल, 18 विद्यार्थी नैनीताल एवं दार्जिलिंग तथा 20 विद्यार्थी शिमला एवं दार्जिलिंग जाना पसंद करते हैं। 26 विद्यार्थी ऐसे हैं जो दिए गए स्थानों में से दो स्थानों पर जाना चाहते हैं।
34 विद्यार्थी शिमला, 52 विद्यार्थी नैनीताल और 58 विद्यार्थी दार्जिलिंग जाना पसंद करते हैं। 15 विद्यार्थी शिमला एवं नैनीताल, 18 विद्यार्थी नैनीताल एवं दार्जिलिंग तथा 20 विद्यार्थी शिमला एवं दार्जिलिंग जाना पसंद करते हैं। 26 विद्यार्थी ऐसे हैं जो दिए गए स्थानों में से दो स्थानों पर जाना चाहते हैं।
कितने विद्यार्थी केवल एक ही स्थान पर जाना पसंद करते
- a)55
- b)65
- c)68
- d)36
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
120 , , 34 , 52 58 15 ,...
Given series:
120, , , 34, 52, 58, 15, , 18, 20, 26
To find the missing numbers, we need to observe the given series carefully.
Observations:
- The first missing number is between 120 and 34. So, we need to subtract some number from 120 to get 34.
- The second missing number is between 58 and 15. So, we need to subtract some number from 58 to get 15.
- The third missing number is between 20 and 26. So, we need to add some number to 20 to get 26.
Solutions:
1st missing number:
- 120 - 34 = 86
2nd missing number:
- 58 - 15 = 43
3rd missing number:
- 26 - 20 = 6
Now, the series becomes:
120, 86, 43, 34, 52, 58, 15, 6, 18, 20, 26
To find the median of this series, we need to arrange the numbers in ascending order:
6, 15, 18, 20, 26, 34, 43, 52, 58, 86, 120
There are 11 numbers in the series, which is an odd number. So, the median will be the middle number, which is:
Median = 26
Therefore, the correct answer is option B (65).
120, , , 34, 52, 58, 15, , 18, 20, 26
To find the missing numbers, we need to observe the given series carefully.
Observations:
- The first missing number is between 120 and 34. So, we need to subtract some number from 120 to get 34.
- The second missing number is between 58 and 15. So, we need to subtract some number from 58 to get 15.
- The third missing number is between 20 and 26. So, we need to add some number to 20 to get 26.
Solutions:
1st missing number:
- 120 - 34 = 86
2nd missing number:
- 58 - 15 = 43
3rd missing number:
- 26 - 20 = 6
Now, the series becomes:
120, 86, 43, 34, 52, 58, 15, 6, 18, 20, 26
To find the median of this series, we need to arrange the numbers in ascending order:
6, 15, 18, 20, 26, 34, 43, 52, 58, 86, 120
There are 11 numbers in the series, which is an odd number. So, the median will be the middle number, which is:
Median = 26
Therefore, the correct answer is option B (65).
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Community Answer
120 , , 34 , 52 58 15 ,...
उन विद्यार्थियों की संख्या जो केवल एक ही स्थान पर जाना पसंद करते हैं = 8 + 28 + 29 = 65 इसलिए विकल्प (b) सही उत्तर है।
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120 , , 34 , 52 58 15 , 18 20 26 a)55b)65c)68d)36Correct answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about 120 , , 34 , 52 58 15 , 18 20 26 a)55b)65c)68d)36Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 120 , , 34 , 52 58 15 , 18 20 26 a)55b)65c)68d)36Correct answer is option 'B'. Can you explain this answer?.
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