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Name: Please Solve R.D. Sharma class 12 Chapter 30 Probaility Exercise 30.5 Question 3 Sub Question 2 Maths Textbook Solution.
Uploaded: Fri, 2021-09-10 15:37
Description: Please Solve R.D. Sharma class 12 Chapter 30 Probaility Exercise 30.5 Question 3 Sub Question 2 Maths Textbook Solution.

#R.D. Sharma
#RD Sharma Vol. 2 Class 12
#Maths
#Probability
#School
#CBSE 12 Class

#1.3
#10.1
#Very Short Answer type
#Multiple Choice Questions (MCQs)
#30.1
#30.2
#30.4
#30.5
#30.6
#30.7
#Case Study Based Questions (CSBQ)

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Please Solve R.D. Sharma class 12 Chapter 30 Probaility Exercise 30.5 Question 3 Sub Question 2 Maths Textbook Solution.

Answers (1)

Answer: $\frac{20}{81}$

Hint: You must know the rules of finding probability

Given:Box contains10 black and 8 red balls

Solution:Box = (10 B and 8R) balls

Total no. of balls =10+8=18 balls

P(first black and second red ball)

$=\left ( \frac{10}{18}\times \frac{8}{18} \right )$

$=\frac{80}{324}$

$P=\frac{20}{81}$

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Please Solve R.D. Sharma class 12 Chapter 30 Probaility Exercise 30.5 Question 3 Sub Question 2 Maths Textbook Solution.

Answers (1)

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