top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

What is the probability of both balls having same colour?

0 votes
212 views

There are two bags.
First contains 7 red and 5 violet balls whereas second contains 7 violet and 5 red balls.
A ball is drawn at random from both the bags.
What is the probability of both balls having same colour?

posted Dec 1, 2020 by Mohammad

Share this puzzle
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

0 votes

48.6%
.
Chance 1st bag is red = 7/12. Chance 2nd bag is red = 5/12.
Combined chance of 35/144
Chance 1st bag is violet = 5/12. Chance 2nd bag is violet is 7/12.
Combined chance of 35/144.
Chance of both balls having same color is 70/144 = 48.6%

answer Dec 10, 2020 by Jcm



Similar Puzzles
0 votes

5 pairs of two ball (1 white and 1 red) are available. We have to select 1 white and 1 red ball.
What will be the probability to select both the balls of same pair?

+1 vote

Assuming a person can grow a maximum of 40 crore hair on thier body and that the world has a population of 730 crore, What are the chances of 2 people having the same number of body hair on them ?

0 votes

There are four colored balls in a hat: two red, one black and one blue. After pulling out two of them, you know that one of them is red, but you do not know which one. What is the probability that both balls are red?

0 votes

A bag contains Red Balls and Black Balls. Two balls are drawn without replacement. The probability that both the balls drawn are red is 1/2. What is the minimum number of Red and Black Balls for which this probability is satisfied?

...