Question

A jar contains 3 red marbles, 7 green marbles and 10 white marbles. If a marble is drawn from the jar at random, what is the probability that this marble is red, green and white

Answer 1

Answer:

p(red marble)=3/10+3+7=3/20

p(green marbles)=7/20

p(white marbles)=10/20=1/2

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