Question

a bag contain 5red ball and some blue ball if the probablity of drawong a blue ball is double that of red ball determine the no of blue ball in the bag

Answer 1

10 is the right answer

Answer 2

Answer: 10 Blue balls

Step-by-step explanation: as we know, that :

                             if no of reb balls = 5

                                no of blue balls = x

                                 probability of picking blue ball = 2x

                                 x = 5

                                  2x = 2 x 5                          ( multiply both sides with 2x as probability is 2x)