A bag contains 8 red balls and some blue balls. If one ball is drawn
randomly the probability of drawing a red ball to a blue ball are in the
ratio 5 : 2, determine the probability of drawing a blue ball from the
bag
Answers
Answer:
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Given : A bag contains 8 red balls and some blue balls.
If one ball is drawn randomly the probability of drawing a red ball to a blue ball are in the ratio 5:2
To Find : probability of drawing a blue ball from the bag
Solution:
probability of drawing a red ball to a blue ball are in the ratio 5:2
probability of drawing red ball = 5P
probability of drawing Blue ball =2P
Total Probability = 5P + 2P = 7P
probability of drawing a blue ball from the bag = 2P/7P = 2/7
additional info
To find number of blue balls in Bags
Let say blue balls = B
Total Balls = 8 + B
B /(8 + B) = 2/7
=> 7B = 16 + 2B
=> 5B = 16
=> B = 16/5
Balls should be in integer
looks problem with data
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