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, 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, determine the number of blue balls in the bag.

A bag contains 6 red balls and some blue balls. If the probability of drawing a blue ball from the bag is twice that of a red ball, find the number of blue balls in the bag.

A bag contains 15 white balls and some black balls. If the probability of drawing a black ball is thrice that of a white ball, find the number of black balls in the bag.

A bag contains 4 white balls and some red balls. If the probability of drawing a white ball from the bag is 2/5, find the number of red balls in the bag.

There are 5 red and 4 black balls in a bag. The probability of drawing a red ball is:

A bag constains white, black and red ball only. A ball is draw at random form the bage. If the probability of getting a white balls is (3)/(10) and that of a black ball is (2)/(5) then find the probability of getting a red ball. If the bag contains 20 black balls, find the total number of balls in the bag.

A bag contains red, white, blue balls. Write the sum of P (red), P (white) and P (blue ) balls.

A bag contains an assortment of blue and red balls. If two balls are drawn at random, the probability of drawing two red balls is five times the probability of drawing two blue balls. Furthermore, the probability of drawing one ball of each color is six time the probability of drawing two balls. The number of red and blue balls in the bag is 6,3 b. 3,6 c. 2,7 d. none of these

A bag contains 8 red, 3 white and 9 blue balls. If three balls are drawn at random, determine the probability that the ball is red.