A bag contains 5 red, 8 green and 7 white balls,

Question:

A bag contains 5 red, 8 green and 7 white balls, One ball is drawn at random from the bag. What is the probability of getting a white ball or a green ball?

Solution:

GIVEN: A bag contains5 red, 8 green and 7 white balls

TO FIND: Probability of getting a white ball or a green ball.

Total number of balls 

Total number of green or white balls 

We know that PROBABILITY = 

Hence probability of getting a green or a white ball = 

Hence probability of getting an green or white ball = 

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