Jump to

- Rational Numbers
- Exponents and Powers
- Squares and Square Roots
- Cubes and Cube Roots
- Playing with Numbers
- Operation on sets Venn Diagrams
- Percentage
- Simple and Compound Interest
- Direct and Inverse Variation
- Algebraic Expressions and Identities
- Factorisation
- Linear Equations and Inequalities In one Variable
- Understanding Quadrilaterals
- Constructions of Quadrilaterals
- Circle
- Symmetry Reflection and Rotation
- Visualising Solid Shapes
- Mensuration
- Data Handling

A bag contains 5 red, 6 black and 4 white balls. A ball is drawn at random from the bag, find the probability the ball is drawn is

(i) white

(ii) not black

(iii) red or black

(iv) neither red nor black

Answer:

Given

In a bag, there are 5 red, 6 black and 4 white balls. Then, total number of outcomes = 5 + 6 + 4 = 15 (i) Probability of white ball = 4 / 15

(ii) Probability of not black = 5 + 4 = 9 balls Therefore, Probability of not black = 9 / 15 = 3 / 5

(iii) Probability of red or black = 5 + 6 = 11 Therefore, Probability of red or black = 11 / 15

(iv) Probability of ball which is neither red nor black, i.e, white ball = 4 Therefore, Probability of ball which is neither red nor black = 4 / 15

Related Questions

Chapters

Lido

Courses

Quick Links

Terms & Policies

Terms & Policies

2022 © Quality Tutorials Pvt Ltd All rights reserved