UrbanPro

Location Set your Location

Login Ask & Answer Success Stories Paid Courses Free Classes Tuition & Classes Fees Write a Review All Categories Help Center
Post your Learning Need Signup as a Tutor
✕

Popular Cities

Bangalore

Hyderabad

Delhi

Mumbai

Chennai

Pune

Kolkata

Gurgaon

Ahmedabad

Jaipur

Noida

✕

Take Class 12 Tuition from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Book a Free Demo

Class 12 Tuition > Learn Class XI-XII Tuition (PUC) > In library there are 2n+1 books if a student select...
✕

Search in

In library there are 2n+1 books if a student select at least n+1 books in 256 ways how many number of books in a library?

Asked by Last Modified  

8 Answers

Learn Class XI-XII Tuition (PUC)

Follow 0
Answer

Please enter your answer

There are 9 books
Comments
Dislike Bookmark

MSc Chemistry , NET qualified

There are 9 Books.
Comments
Dislike Bookmark

Math Professional Tutor with 16 Years experience

Given that C(2n+1, n+1) + C(2n+1, n+2) + C(2n+1, n+3) +........+ C(2n+1, 2n+1) = 256 --------- (1) => C(2n+1, n) + C(2n+1, n-1) + C(2n+1, n-2) +........+ C(2n+1, 0) = 256 --------- (2) By adding (1) & (2), we get 2^(2n+1) = 512=2^9 => 2n+1 = 9 There fore total number...
read more
Given that C(2n+1, n+1) + C(2n+1, n+2) + C(2n+1, n+3) +........+ C(2n+1, 2n+1) = 256 --------- (1) => C(2n+1, n) + C(2n+1, n-1) + C(2n+1, n-2) +........+ C(2n+1, 0) = 256 --------- (2) By adding (1) & (2), we get 2^(2n+1) = 512=2^9 => 2n+1 = 9 There fore total number of books in the Library = 9. read less
Comments
Dislike Bookmark

Math Professional Tutor with 16 Years experience

Given that C(2n+1, n+1) + C(2n+1, n+2) + C(2n+1, n+3) +........+ C(2n+1, 2n+1) = 256 --------- (1) => C(2n+1, n) + C(2n+1, n-1) + C(2n+1, n-2) +........+ C(2n+1, 0) = 256 ------- (2) By adding (1) & (2), we get 2^(2n+1) = 512=2^9 => 2n+1 = 9 There fore total number...
read more
Given that C(2n+1, n+1) + C(2n+1, n+2) + C(2n+1, n+3) +........+ C(2n+1, 2n+1) = 256 --------- (1) => C(2n+1, n) + C(2n+1, n-1) + C(2n+1, n-2) +........+ C(2n+1, 0) = 256 ------- (2) [Since C(n, r) = C(n, n-r)] By adding (1) & (2), we get 2^(2n+1) = 512=2^9 => 2n+1 = 9 There fore total number of books in the Library = 9. read less
Comments
Dislike Bookmark

Maths Tutor

9 books
Comments
Dislike Bookmark

Brain Trainer

9 books
Comments
Dislike Bookmark

Trainer

4
Comments
Dislike Bookmark

There fore total number of books in the Library = 9.
Comments
Dislike Bookmark

View 6 more Answers

Related Questions

The permissible energy levels taken in gourps are called __________. (Permissible energy leves, energy bands, conduction bands, forbidden energy levels
Energy band
Narendra Kumar
0 0
7
Why it is easier to roll a stone up a sloping road than to lift it vertical upwards?
it is easier to roll up a stone on sloping road than lifting vertically because while lifting vertically the work is done against its weight "mg" but when it is rolled up a slope then there is a component...
Aishwarya
0 0
8
Why is ozone is thermodynamically unstable?
The ozone formation is actually endothermic, and oxygen is known to be less stable when combined with Heat as in speaking from the basis of thermodynamically. This is because oxygen decomposes in Ozone...
Madhu
0 0
5
Please let me know what is the fee for class x online tuition?
I think it would be around 300-400 in delhi region.
Dr.C. Sheela Sasikumar
Two resistors of 2W and 3W are connected in series with a battery of 10 volts. Potential difference across 2W resistor will be __________. (5 volt, 4 volt, 6 volt, 10 volts)
4v by applying voltage divider rule, 2/(2+3)*10 = 2*2 = 4
Narendra Kumar

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Introduction To Accounting: Part 17: Dual Aspect Concept
There are always two aspects of a Business Transaction. Examples: Purchase of Machinery for Rs 50,000. The two aspects in this transaction are: Incoming of Machinery Outflow of...

Nishant Kumar

0 0
0
Failing in relatively easy subjects - remedies
Often most parents complains that their ward cleared many hard subjects but could not cleared the easy subject. The students perception about the subject makes it easier or harder not the course content....
B

Babu T

0 0
0
Buddha bisiloorinavanu - Shabdhartha

Sandhya

0 0
0
Accounts: Definitions With Features & Differences
1. Definition of Book-Keeping: It is the art of recording monetary transactions in the books of account in the proper manner. According to E.L.Kohler: Book-Keeping as “the process of analysing ,...
K

Kousiki Chakraborty

1 0
0
For CBSE PUC Accountancy- How to Identify Revenue vs Capital Expenditures for a Business Organisation
Dear Students, Identification of Revenue and Capital natured expenditure is essential for us. It is the base for many of the chapters in your Accountancy Syllabus. Let us understand these terms with several...

Madhura Sagar G.

2 0
0

Recommended Articles

Meet Urmila, an MBBS tutor from Bangalore

Urmila is a passionate teacher with over 8 years of experience in teaching. She is currently pursuing her Ph. D. She provides classes for Class 11, Class 12, MBBS and Medical tuition.  Urmila began her career in teaching long before she became a teacher. She used to provide classes for foreign national students in her college...

Read full article >

Meet Radhe Shyam Burman, an MBA Tutor from...

Radhe Shyam is a highly skilled accounts and finance trainer with 8 years of experience in teaching. Accounting is challenging for many students and that’s where Radhe Shyam’s expertise comes into play. He helps his students not only in understanding the subject but also advises them on how to overcome the fear of accounts...

Read full article >

Meet Mohammad Wazid, a skilled trainer for...

Mohammad Wazid is a certified professional tutor for class 11 students. He has 6 years of teaching experience which he couples with an energetic attitude and a vision of making any subject easy for the students. Over the years he has developed skills with a capability of understanding the requirements of the students. This...

Read full article >

Meet Sandhya R, a B.Sc tutor from Bangalore

Sandhya is a proactive educationalist. She conducts classes for CBSE, PUC, ICSE, I.B. and IGCSE. Having a 6-year experience in teaching, she connects with her students and provides tutoring as per their understanding. She mentors her students personally and strives them to achieve their goals with ease. Being an enthusiastic...

Read full article >

Find Class 12 Tuition near you
Class 12 Tuition in Delhi
Class 12 Tuition in Bangalore
Class 12 Tuition in Hyderabad
Class 12 Tuition in Kolkata
Class 12 Tuition in Mumbai
Class 12 Tuition in Chennai
Class 12 Tuition in Pune
Class 12 Tuition in Jaipur
Class 12 Tuition in Lucknow
Class 12 Tuition in Noida

Looking for Class 12 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for Class 12 Tuition Classes?

The best tutors for Class 12 Tuition Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Take Class 12 Tuition with the Best Tutors

The best Tutors for Class 12 Tuition Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more

ThinkVidya Learning Pvt Ltd © 2010-2024All Rights Reserved