Coloured bills are distributed in three bags as shown in the following table: Bag Colour of the ball   Black White Red I 1 2 3 II 2 4 1 III 4 5 3 A bag is selected at random and then two balls are randomly drawn from the selected bag. They happen to be black and red. What is the probability that they came from bag I?

(i) Coloured balls are distributed in three bags as shown in the following table : A bag is selected at random and then two balls are randomly drawn from the selected bag. They happen to be black and red. Find the probability that they come from bag I ? (ii) Three bags contain balls as shown in the table below : A bag is chosen at random and two balls are drawn from it. They happen to be white and red. What is the from it. They happen to be white and red. What is the probability that they come from the III bag ?

If two balls are drawn from a bag containing 3 white,4 black and 5 red balls,then the probability that the drawn balls are of different colours is

Three bags contain balls as shown in the table below: Bag Number of White balls Number of Black balls Number of Red balls I 1 2 3 II 2 1 1 III 4 3 2 A bag is chosen at random and two balls are drawn from it. They happen to be white and red. What is the probability that they came from the III bag?

Bag I contains 2 white, 1 black and 3 red balls, Bag II contains 3 white, 2 black and 4 red balls, Bag III contains 4 white, 3 black and 2 red balls. A bag is chosen at random and two balls are drawn from it. They happen to be one black and one red. What is the probability that they come from bag II ?

A bag contains 3 red balls and 5 black balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is: red (b) black

A bag A has 3 red and 2 black balls, and a bag B had 3 red and 4 black balls. Then one ball is drawn from B and placed in A. if one ball is drawn from A. What is the probability that it is red ?

A bag contains 5 black, 7 red and 3 white balls. A ball is drawn from the bag at random. Find the probability that the ball drawn is : (i) red (ii) black or white (iii) not black.

A bag contains 3 red, 4 black and 5 green balls of the same size. A ball is drawn at random from the bag. What is the probability that the ball drawn is (i) red? (ii) not black? (iii) black ?

A bag contains 5 red and 4 green balls and another bag contains 3 red and 7 black balls. If a ball is drawn from each bag. Find the probability that both are of different colours.