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Aluminium2.8 x 10-8 Copper 1.7 x 10-8 Gold 2.4 x 10-8 Silver 1.6 x 10-8
In a lottery, there are 4 prizes and 20 blanks. A lottery is drawn at random. What is the probability of getting a prize?
A bag contains 14 Green and 16 Red balls. One ball is drawn at random. What is the probability that the ball drawn is Red?