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let the number of blue balls be n .
total no red balls 5.
total numbers of ball 5+n
now
p(drawing a red ball)
number of red balls by / total no of balls
5/5+n
and
p( drawing a blue ball )
number of the blue ball / total number of balls
n/ 5+n
a/q
p(drawing a blue ball ) = 2×p (drawing red ball)
n/ 5+n = 2×5/5+n
n= 2×5= 10
so, the number of blue balls in the bag is 10
be brainly
total no red balls 5.
total numbers of ball 5+n
now
p(drawing a red ball)
number of red balls by / total no of balls
5/5+n
and
p( drawing a blue ball )
number of the blue ball / total number of balls
n/ 5+n
a/q
p(drawing a blue ball ) = 2×p (drawing red ball)
n/ 5+n = 2×5/5+n
n= 2×5= 10
so, the number of blue balls in the bag is 10
be brainly
Answered by
0
5 red balls and 10 blue balls total balls 15 the probability of red balls 5|15 =1|3 and the probability of blue balls 10/15=2/3 so probability of blue balls is 2 times of red balls
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