Question

a bag contains 5 red balls and some blue balls. if the probability of drawing a blue balls from the bag is through that of red ball. find the number of blue balls in the bag?
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Answer 1

Answer:

Step-by-step explanation:

let the no of blue balls be x

according to the the question,

x/5+x=5/5+x

x(5+x)=5(5+x)

5x+x^2=25+5x

x^2=25

x=5

hope it helps