A bag contains 24 balls of which x are red, 2x are white and 3x are blue. A ball is selected at random. What is the probability that it is white

Solution:

Given, a bag contains 24 balls of which x are red, 2x are white and 3x are blue.

A ball is selected at random.

We have to find the probability of selecting a ball that is white.

Given, x + 2x + 3x = 24

6x = 24

x = 24/6

x = 4

Number of red balls = x

= 4

Number of white balls = 2x

= 2(4)

= 8

Number of blue balls = 3x

= 3(4)

= 12

The probability of selecting a ball that is white is given by

Favourbale outcomes = white balls

Number of favourable outcomes = 8

Number of possible outcomes = 24

Probability = number of favourable outcomes / number of possible outcomes

Probability = 8/24

= 1/3

Therefore, the probability of selecting a ball that is white is 1/3.

✦ Try This: A bag contains 6 red, 3 black and 6 white balls. A ball is selected at random from the bag, what is the probability that the selected ball is not white?

☛ Also Check: NCERT Solutions for Class 10 Maths Chapter 14

NCERT Exemplar Class 10 Maths Exercise 13.3 Problem 41(ii)

A bag contains 24 balls of which x are red, 2x are white and 3x are blue. A ball is selected at random. What is the probability that it is white

Summary:

A bag contains 24 balls of which x are red, 2x are white and 3x are blue. A ball is selected at random. The probability that it is white is 1/3

☛ Related Questions:

• What is the probability that the first player wins a prize. At a fete, cards bearing numbers 1 to 10 . . . .
• What is the probability that the second player wins a prize, if the first has won. At a fete, cards . . . .
• The following is the cumulative frequency distribution (of less than type) of 1000 persons each of a . . . .