Question

If a ball is selected at random from an urn containing six red balls, seven white balls, and seven blue balls, what is the probability that it will be a white ball?

Answer 1

Answer:

total no of white balls n(W)=7

total no of balls n(s)=7+6+7=20

Step-by-step explanation:

probability of white ball =n(w)/n(s)

=7/20