A bag contains 6 red balls and some blue balls in the probability of drawing a blue ball from the bag is twice that of a red ball find the number of blue balls in the bag
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Answered by
23
Given no. Of Red balls is 6
Let the remaining Blue balls = x
Total balls = x + 6
P(E)of blue balls is double than red balls
Probability
then
P(E) blue = 2 x P(E) red
x / x + 6 = 2 x 6 / x + 6
X = 12
Therefore there are 12 blue balls
Let the remaining Blue balls = x
Total balls = x + 6
P(E)of blue balls is double than red balls
Probability
then
P(E) blue = 2 x P(E) red
x / x + 6 = 2 x 6 / x + 6
X = 12
Therefore there are 12 blue balls
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