Question

a box contains some green and blue balls. 5red valls are added to that box. and then a ball is taken from it. the probability of the ball being red is 5/22 and the probability of it being blue is 1/2. 1). what is the number of blue balls​

Answer 1

Answer:

11 balls

Step-by-step explanation:

p of getting a red ball = favourable outcomes

                                      ---------------------------------

                                         total outcomes

= 5/22

so, total balls = 22

since p of getting blue balls = 1/2

no of blue balls = 1/2 * 22 = 11

Answer 2

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