top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

What is the probability that picked ball is neither red nor green?

+1 vote
641 views

In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?

posted Apr 30, 2014 by anonymous

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

2 Answers

+2 votes

total number of balls = (8 + 7 + 6) = 21.

Let E = event that the ball drawn is neither red nor green = event that the ball drawn is blue.
So n(E) = 7

P(E) = n(E)/n(S) =7/21

or P(E) = 1/3

answer Apr 30, 2014 by Salil Agrawal
0 votes

7/(8+7+6) = 1/3

answer Apr 30, 2014 by Priyaa Trippayar Sahasranaman



Similar Puzzles
+1 vote

A bag contains 5 white, 4 red and 3 black balls. A ball is drawn at random from the bag, what is the probability that it is not black?

0 votes

A box contains 4 blue, 3 red, 5 green and 6 yellow marbles.
If three marbles are drawn at random, what is the probability that at least one is green?

0 votes

A packet contains blue, red and green pens such that the probability of picking a blue pen is 2/9 and probability of picking a green pen is 4/9.
If number of red pens is 15 and if all the pens are numbered starting from 1, 2, 3....so on, then what is the probability of getting one pen numbered as multiple of 7 or 11?

+1 vote

A bag has 100 balls out of which there is one green ball. 50 balls are randomly selected. What is probability that the green ball is selected.

...