Question

A bag contains some identical balls. Out of those, 45% are blue, 30% are yellow and rest are red in colour. If a ball is picked at random, what is the probability that it is not a red ball? *

2 points

1/4

3/4

1/3

2/3

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Answer 1

Answer:

Step-by-step explanation:

3/4

Answer 2

Given :

Percentage of blue balls = 45%

Percentage of yellow balls = 30 %

To find:

Probability of not getting a red ball.

Solution:

We know that,

Here, it  is given that 45 % of balls are blue and 30 % of balls are yellow.

Probability of getting a blue ball = 45 ÷ 100 = 9/20

Probability of getting a yellow ball = 30 ÷ 100 = 3/10

Probability of not getting a red ball = ( Probability of getting a blue ball + probability of getting a yellow ball )

= ( 9/20 + 3/10 )

= 3/4

3/4 is the probability of not getting a red ball.