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A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is double that of a red ball, determine the number of blue balls in the bag.
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Practice questions from similar books
Question 1
Each question has four choices a, b, c, and d, out of which only one is correct. Each question contains STATEMENT 1 and STATEMENT 2.
Both the statements are TRUE and statement 2 is the correct explanation of Statement 1.
Both the statements are TRUE but Statement 2 is NOT the correct explanation of Statement 1.
Statement 1 is TRUE and Statement 2 is FALSE.
Statement 1 is FALSE and Statement 2 is TRUE.
Statement 1: For events
of sample space if
, then
Statement 2:
, Question 2
A bag contains 4 red and 4 black balls, another bag contains 2 red and 6 black balls. One of the two bags is selected at random and two balls are drawn at random without replacement from the bag and are found to be both red. Find the probability that the balls are drawn from the first bag.Question 3
There are five students and in a music class and for them there are five seats and arranged in a row, where initially the seat is allotted to the student . But, on the examination day, the five students are randomly allotted five seats.The probability that, on the examination day, the student gets the previously allotted seat , and NONE of the remaining students gets the seat previously allotted to him/her is(b) (c) (d) 
| Question Text | A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is double that of a red ball, determine the number of blue balls in the bag. |
