Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Please Solve R.D.Sharma class 12 Chapter 30 Probaility Exercise 30.5 Question 1 Maths Textbook Solution.

Please Solve R.D.Sharma class 12 Chapter 30 Probaility  Exercise 30.5 Question 1 Maths Textbook Solution.

Answers (1)

Answer:\frac{14}{27}

Hint: You must know the rules of finding probability

Given: Bag 1 – 3 white & 6 black balls

Bag 2 – 5 black & 4 white balls

Solution:

Bag 1=\left ( 3W+6B \right )=9balls

Bag 2=\left ( 5B+4W \right )=9balls

P\left (balls\: of\: same\: colour\: are\: drawn \right )=P\left ( both\: black \right )+P\left ( both\: white \right )

\begin{aligned} &=\left(\frac{6}{9} \times \frac{5}{9}\right)+\left(\frac{3}{9} \times \frac{4}{9}\right) \\ &=\frac{30}{81}+\frac{12}{81} \\ &=\frac{42}{81} \\ &P=\frac{14}{27} \end{aligned}

 

Posted by

infoexpert21

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

Centre, CBSE, NCERT defend NEP three-language policy in SC; seek dismissal of pleas against framework
anam-khan

Supreme Court to hear plea against CBSE evaluation policy for Gulf Class 12 students on July 14
anam-khan

'Award grace marks': CBSE's July 28 supplementary exam sparks student outrage over college admissions

Latest Question