- Rational Numbers
- Exponents
- Squares and Square Roots
- Cubes and Cube Roots
- Playing with Numbers
- Operations on Algebraic Expressions
- Factorisation
- Linear Equations
- Percentage
- Profit and Loss
- Compound Interest
- Direct and Inverse Proportions
- Time and Work
- Polygons
- Parallelograms
- Construction of Quadrilaterals
- Area of a Trapezium and a Polygon
- Three-Dimensional Figures
- Volume and Surface Area of Solids
- Data Handling
- Introduction to Coordinate Geometry
- Line Graphs and Linear Graphs
- Pie Charts
- Probability
RS Aggarwal Solutions Class 8 Mathematics Solutions for Probability Exercise 25A in Chapter 25 - Probability
Prev
A bag contains 4 white and 5 blue balls. They are mixed thoroughly and one
ball is drawn at random. What is the probability of getting (i) a white ball? (ii)
A blue ball?
i. We know that the bag containing the total balls = 4white + 5blue = 9balls
White balls = 4
By using the formula,
Probability p () = number of favorable outcomes/ total number of outcomes
∴ Probability of getting a white ball p (W) = number of white balls/total number of balls
=4/9
ii. We know that the bag containing the total balls = 4white + 5blue = 9balls
Blue balls = 5
By using the formula,
Probability p () = number of favorable outcomes/ total number of outcomes
∴ Probability of getting a blue ball p (B) = number of blue balls/total number of balls
=5/9
Facebook
Whatsapp
Copy Link
Lido
Courses
Quick Links
Terms & Policies
Terms & Policies
