Question

a bag contains 4 red balls 5 green balls .a ball is selected at random from the bag what is the probability that the ball is selected is green or blue

Answer 1

Answer:

5/9

Step-by-step explanation:

Number of green balls=5/9

Blue balls=0

Therefre probability of picking Green or Blue=5/9+0=5/9

Hope it helps.

Answer 2

Answer: Total number of balls in the bag =5+4+7=16

∴ Total number of elementary events = 16

There are 4 balls that are neither green nor blue

∴ Favourable number of elementary events =4

Hence, P (Getting neither red nor white ball) =  16 /4  =  4 /1

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