Question

A bag contain 5red Ball and some blue ball. If the probability of drawing a blue ball from the bag is thrice that of a Red ball. find the number of blue ball is the bag
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Answer 1

Answer:

15 blue balls

Step-by-step explanation:

Let blue ball be x

then,

3 ( 5 / x+5 ) = x / x +5

15/x+5 = x / x + 5

x = 15

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Answer 2

Answer:

please mark brainliest

Step-by-step explanation:

No. of red balls=5

Let no. of blue balls be x

Total balls=5+x

according to question,

x/5+x = 3 X 5/x+5

x=15

no. of blue balls=15

x+5 =15+5=20, ie total no. of ball