Question 4.
A bag contains 20 balls out of which x balls are blue. If one ball is drawn at random, find
the probability of drawing a blue ball. If 10 more blue balls are added the bag, and a ball is
drawn at random then the probability of getting a blue ball is double the probability obtained
hefore. Find x.
[3]
Guys I am hvng my math board paper tomorrow can someone pls give me the solution?!
Answers
Answered by
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Step-by-step explanation:
(i)
Bag contains 20 balls out of which x balls are blue
Therefore, no. of red balls=20-x.
Probability of getting blue ball=x/20
(ii)
New Probability of getting blue ball=(x+10)/20
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