Nine identical balls are numbered 1, 2, ..., 9 and put in a bag. A draws a ball and gets the number `'a'`. The ball is put back in the bag. Next B draws a ball and gets the number `'b'`. The probability that 'a' and 'b' satisfies the inequality `a - 2b + 10 gt 0` is

A bag contains w white and b black balls. A ball is drawn at random and put back in the bag with k additional balls of the same colour. A ball is again drawn at random from the bag. The probability that it is black is

A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball double that of a red ball determine the number of blue balls in the bag.

A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is double that of a red ball, find the number of blue balls in the bag.

A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is double that of a red ball, find the number of blue balls in the bag.

A bag contains 5 red balls and some blue balls, If the probability of drawing a blue ball is double that of a red ball, Find the number of blue balls in the bag.

A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is double that of a red ball, find the number of blue balls in the bag.

A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is double that of a red ball, find the number of blue balls in the bag.

A bag contains 5 red balls and some blue balls If the probability of drawing a blue ball is double that of a red ball,find the number of blue balls in the bag.

A bag contains 6 red balls,3 blue balls,and 5 green balls.Kevin draws 2 balls out of the bag. What is the probability that he gets a red ball and a blue ball?

A bag contains 3 red balls bear in one of the numbers 1,2, or 3 (one number on one ball), and 2 black balls bearing the numbers 4or 6. A ball is drawn, its number is noted and the ball is repalced in the bag. Then another ball is drawn and its number is noted. Find the probability of drawing: (i) 2 on the first draw and 6 on the second draw (ii) a number le2 on the first draw and 4 on the second draw (iii) a total of 5.