Email
Chat with tutor
logo

Ask Questions, Get Answers

X
 
Answer
Comment
Share
Q)

The number of ways to give away 20 apples to 3 boys,each boy receiving atleast 4 apples is

$\begin{array}{1 1}(A)\;10C_8\\(B)\;90\\(C)\;22C_{20}\\(D)\;\text{None of these}\end{array} $

1 Answer

Comment
A)
After giving away 4 apples to each boy,8 apples are left to be distributed among 3 boys.
$\therefore$ The required number of ways =the number of non-negative integral solutions of $(x+y+z=8)$
$\Rightarrow 10C_8$
Hence (A) is the correct answer.
Help Clay6 to be free
Clay6 needs your help to survive. We have roughly 7 lakh students visiting us monthly. We want to keep our services free and improve with prompt help and advanced solutions by adding more teachers and infrastructure.

A small donation from you will help us reach that goal faster. Talk to your parents, teachers and school and spread the word about clay6. You can pay online or send a cheque.

Thanks for your support.
Continue
Please choose your payment mode to continue
Home Ask Homework Questions
Your payment for is successful.
Continue
Clay6 tutors use Telegram* chat app to help students with their questions and doubts.
Do you have the Telegram chat app installed?
Already installed Install now
*Telegram is a chat app like WhatsApp / Facebook Messenger / Skype.
...