A bag contains 5 red balls and some blue balls. If the probability of

1.	A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball isdouble that of a red ball, determine the number of blue balls in the bag
Answer» Let blue balls be x Red balls are 5Total balls=5+x Probability of drawing blue ball=x/5+xProbability of drawing red ball=5/5+x x/5+x=2*5/5+xx=10 Number of blue balls are 10

A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball isdouble that of a red ball, determine the number of blue balls in the bag

Answer»

Let blue balls be x Red balls are 5Total balls=5+x

Probability of drawing blue ball=x/5+xProbability of drawing red ball=5/5+x

x/5+x=2*5/5+xx=10

Number of blue balls are 10