A jar contains 24 marbles, some are green and others are blue. If a marble is drawn at random from the jar, the probability that it is green is 2/3,
A jar contains 24 marbles, some are green and others are blue. If a marble is drawn at random from the jar, the probability that it is green is 2/3, Find the number of blue balls in the jar.
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Solution: Total number of outcomes = 24
P (Green) = 2/3
If number of green balls is G then;
G/24 = 2/3
or, G = (24*2)/3 = 16
Hence, number of blue balls = 24 – 16 = 8
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