A bag contains a certain number of red balls. A ball is drawn. Find the probability that the ball drawn is red.

A bag contains a certain number of red balls. A ball is drawn. Find the probability that the ball drawn is black.

A bag contains 9 red and 12 white balls one ball is drawn at random. Find the probability that the ball drawn is red.

A bag contains 5 white and 7 red balls. One ball is drawn at random. What is the probability that ball drawn is white?

An urn contains 10 red and 8 white balls. One ball is drawn at random. Find the probability that the ball drawn is white.

There are 6 red and 4 black balls in a bag. A ball is drawn at random. Find the probability that the ball drawn is red.

A bag contains 6 red and 8 black balls and another bag contains 8 red and 6 black balls. A ball is drawn from the first bag and without noticing its colour is put in the second bag. A ball is drawn from the second bag. Find the probability that the ball drawn is red in colour.

There are 5 red and 3 black balls in first bag and 4 red and 5 black balls i second bag. A ball is drawn from one of the bags. Find the probability that the ball drawn is red.

A bag contains 10 red 5 blue and 7 green balls. A ball is drawn at random. Find the probability of this ball being a (i) red ball (ii) green ball (iii) not a blue ball

One bag A contains 4 red and 5 black balls. The other bag B contains 6 red and 3 black balls. A ball is taken from bag A and transferred to bag B. Now a ball is taken from bag B. Find the probability that the ball drawn is red.

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