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) > A box contains 12 balls out of which 7 are red and...
✕

Search in

A box contains 12 balls out of which 7 are red and rest are green. In how many ways can a random sample of 8 balls be drawn from the bag so that at the most 3 red balls are included in the sample and no sample has all the 8 balls of the same colour?

Asked by Last Modified  

10 Answers

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

Follow 1
Answer

Please enter your answer

Tutor

7C3*5C5 =( 7!/3!*(7-3)! ) / 1 = 7*6*5*4! /3!*4! = 7*5 =35
Comments
Dislike Bookmark

Working for better future of India

7C3*5C5=35
Comments
Dislike Bookmark

Expert Mathematics teacher and tutor

It is not possible for all 8 balls to be of same color. Max 3 red and rest free = (7C3×5C5)!+ Max of 2 red balls=(7C2×5C6) not possible. Ans 7C3×5c5 random samples.
Comments
Dislike Bookmark

Experienced Mathematics com ECE Educator

7C3*5C5= 35*1=35. there are 35 possible ways
Comments
Dislike Bookmark

Mathematica Aim Delta

Check out the attachments
Comments
Dislike Bookmark

Path founder

35
Comments
Dislike Bookmark

Tutor

7C3*5C5= 35,since 6 balls cannot be choosen form 5 balls and even more hence 35 is correct answer
Comments
Dislike Bookmark

Math Magician

There are total 12 balls out of which 7 are red and 5 are green. This statement itself says the possibility of all 8 to be of same colour is nil. And to have at most 3 red, we require at least 5 green but we have only 5 green, this leave us with only one combination that is with 3 red and 5 green. No....
read more
There are total 12 balls out of which 7 are red and 5 are green. This statement itself says the possibility of all 8 to be of same colour is nil. And to have at most 3 red, we require at least 5 green but we have only 5 green, this leave us with only one combination that is with 3 red and 5 green. No. of samples= (7!/3!4!)*(5!/5!1!) =35 read less
Comments
Dislike Bookmark

1 way
Comments
Dislike Bookmark

Perfectionist

This question is too trivial. Answer: (7C3)x(5C5)=21. Replace 'atmost' with 'atleast' in the question. Then the solution will be (7C3)x(5C5)+(7C4)x(5C4)+ (7C5)x(5C3)+(7C6)x(5C2)+(7C7)x(5C1).
Comments
Dislike Bookmark

View 8 more Answers

Related Questions

The electrons, which can wander in the solid, are known as __________. (Valence electron, free electron, loosely bound electrons, none of these)
free electrons
Narendra Kumar
0 1
9
I want to teach online but I don't know how will it work n how to get payment from the students.
Ask student to credit it online. U need digital slate and net connection
Sharmistha
Hi, I want to teach online accounts mainly to Class 11, 12 and B.Com students, but I don't have notes, so is it necessary to have notes or how can I develop them, request you to help me regarding this.
Hi Piyush, in online teaching you have to be systematic and very clear in whatever topic you are targeting and for that you should go point vice, so at least you prepare that piont in your mind before starting your online teaching.
Piyush
What should I charge for Class 11-12th CBSE Mathematics and Physics on hourly basis ? I have done Post Graduation in Physics from IIT Kharagpur, admitted through IITJEE. I have experience of around 2 years.
Hello nitin.. First ask the requirements and how much the student is ready to pay.. Based upon that you could charge the students... The fee should be affordable from both the sides... Thanks and regards Prasant
Nitin Kumar
While comparing magnetic field and electric circuits, the point of dissimilarity exists while considering a.) mmf and emf. b.) reluctance and resistance. c.) flux and current flow. d.) permeance and conductance.
Option C. flux and current flow.
Kumar Upendra Akshay
0 0
8

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

Ask a Question

Related Lessons

Ways to Learn Faster, Deeper, and Better Perspective and Focus
Change your focus. There are three primary ways to learn: visual, kinesthetic, and auditory. If one isn’t working for you, try another. Do walking meditation. If you’re taking a hike , go...

Pawan Rama Mali

1 0
0
Features Of Joint Stock Company
What are features of a joint stock company?

Rajiv Vadera

0 0
0
Process Costing
Introduction Process Costing is a method of Costing used in industries where the material has to pass through two or more processes for being converted into final product. It is defined as a method...
F

FR Prashanth Reddy

Class 11: Important Prefixes In The Si System
Mostly commonly terms like "picometre", "nanometre" needs to be converted to SI units to solve in one unit correctly. Micrometre, picometre, nanometre are often used. One can convert them in metres, etc (units).

Nidhi T.

0 0
0
SPECIAL EVENTS IN PARTNERSHIP
SPECIAL EVENTS IN PARTNERSHIP Admission Retirement Death Change in Ratio Combination When a New partner is admitted what are the changes occur? What are the things unavoidable changes? Can...
F

FR Prashanth Reddy

7 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 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 >

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 >

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