a bag contains 5 red and some Blue Balls if probability of drawing a blue ball from the bag is 4 times that of a red ball find the number of blue balls in the bag
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Total number of balls, n= 5+5×4=25
Number of blue balls, m= 20
P(E) = m/n
P( blue balls) = 20/25
= 4/5
Number of blue balls, m= 20
P(E) = m/n
P( blue balls) = 20/25
= 4/5
nibs:
hey thanks , but i got the number of blue balls as 10
no problem if the number of blue balls is 10 then solve it by using the number 10 in the place of 20
but you typed that the balls are 20 , is blue balls 20 or 10 balls?
in your question you told that the ball is 4 times thr red ball thrn 4×5=20
oh ok
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