A selection committee is to be chosen consisting of 5 ex-technicians. Now there are 12 representatives from four zones. It has further been decided that if Mr. X is selected, Y and Z will not be selected and vice-versa. In how many ways it can be done?

Asked by Last Modified  

9 Answers

Learn Class XI-XII Tuition (PUC) +2 Mathematics Permutations

Follow 0
Answer

Please enter your answer

Physics Expert

Answer = 12(C)5 - 3*9(C)4 - 6*9(C)3 - 9(C)2 12(C)5 represent the number of ways to select 5 things out of 12 things. 12(C)5 = total possible ways to select 5 out of 12 9(C)4 = total possible ways to select group such that only one from X,Y,Z must be there. so multiplied by 3 because 3 cases possible...
read more
Answer = 12(C)5 - 3*9(C)4 - 6*9(C)3 - 9(C)2 12(C)5 represent the number of ways to select 5 things out of 12 things. 12(C)5 = total possible ways to select 5 out of 12 9(C)4 = total possible ways to select group such that only one from X,Y,Z must be there. so multiplied by 3 because 3 cases possible (X, Y, Z)+ other 4 people from 12-3=9 person 9(C)3 = total possible ways to select group such that only two from X,Y,Z must be there. so multiplied by 3 because 3 cases possible (XY, YZ, ZX)+ other 3 people from 12-3=9 person. 9(C)2= all X,Y,Z must be there. (from 12-3 =9 we need to take 2 more people) Answer = Total cases - Not desired case read less
Comments
Dislike Bookmark

10C5: when both are not included. 10C4: when one of them is included. Number of ways = 10C5 +10C4+ 10C4 = 672
Comments
Dislike Bookmark

MATHS TEACHER

672
Comments
Dislike Bookmark

Expert

672
Comments
Dislike Bookmark

Trainer

672
Comments
Dislike Bookmark

588
Comments
Dislike Bookmark

MSc.,BEd

Every action has equal and opposite reaction
Comments
Dislike Bookmark

IIT Kanpur Graduate

If X is chosen 9C4, If X is not Chosen 11C5=> 9C4+11C5 = 588
Comments
Dislike Bookmark

Assistant Professor

588
Comments
Dislike Bookmark

View 7 more Answers

Related Questions

What is Kinetic Energy?
Kinetic Energy is said to be the energy which a body possesses by virtue of being in motion.
Ramana
How to measure time?
By your actions
Praveenkumar
The emf of a source is equal to the potential difference across the terminals of the source when either its internal resistance is __________. (Zero, Infinite, Zero or infinite, None of these)
When the internal resistance is zero. If otherwise, the voltage across the terminals of the source suffers a loss across the internal resistance of the emf source.
Narendra Kumar
1 0
7
In a magnetic field the charge at rest experiences __________. (No force, Maximum force, Minimum force, None of these)
No force
Narendra Kumar
0 0
9
How to take online classes, please help me?
Uvsee with its calling and screen sharing features. Make ppt & share & talk. Good luck.
Akkinagunta Vijaya Lakshmi

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

Ask a Question

Related Lessons

Chapter 3 & 4 Analysis of Financial Statements - Questions And Answers.
Chapter 3 & 4 Analysis of Financial Statements Qus:1. How will you show the following items in the Balance sheet of a company. (i) Calls in Arrears (ii) Calls in Advance. Qus:2. Under...

Mahesh Kumar

0 0
0
Rules for Journal Entries
Five golden Rules for journal Entries:1) Increase in expenses debit decrease in expence credit,2) Increase in income credit decrease in income debit,3) Increase in assets debit decrease in assets credit,4)...
P

Prince Bhatia

0 0
0
Key to Success in Mathematics
Following are keys to success in any mathematics exam: 1. Learn how formulas are derived. 2. Types of Interpretations of formulas. 3. Selected Examples to represent types of problems. 4. Good books...

Nilaish

0 0
0
ENGLISH
QUESTION 1.I'm taking a Japanese ___ at the moment. I'm going to have fish for my main ___. 2. n. euphony (a) tedious dwelling on a subject (b) a building where animals are butchered; slaughterhouse...

Sujoy Das

2 0
0
Class XII - Continuity

Akhil Roy

0 0
0

Recommended Articles

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 Raghunandan.G.H, a B. Tech Tutor from...

Raghunandan is a passionate teacher with a decade of teaching experience. Being a skilled trainer with extensive knowledge, he provides high-quality BTech, Class 10 and Class 12 tuition classes. His methods of teaching with real-time examples makes difficult topics simple to understand. He explains every concept in-detail...

Read full article >

Meet Swati, a Hindi Tutor from Bangalore

Swati is a renowned Hindi tutor with 7 years of experience in teaching. She conducts classes for various students ranging from class 6- class 12 and also BA students. Having pursued her education at Madras University where she did her Masters in Hindi, Swati knows her way around students. She believes that each student...

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 >

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

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