Question

A bag contains 12 blue balls and x red balls. if one ball is drawn at random (i)what is the probability that it will be red balls,(ii)if 8 more red balls are put in the bag,and if the probability of drawing a red ball will be twice that of the probability in
(i),then find x
​

Answer 1

Answer:

a basket contains some black, 4 red and 5 green balls. If one ball is taken randomly, the probability of getting a green colour ball is 1/3. What is the no. of Black balls in the basket ? give answer with explanation.

Options are :-

A)3

B)4

C)5

D)6