Question

in a bag there are 5 red balls 3 black balls and some blue balls if the percentage of black balls is 30% then find the number of blue balls ​

Answer 1

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Answer 2

Answer:

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Step-by-step explanation:

Blue balls =30

Red balls =x

Total balls =30+x

Probability of red balls =  x/30+x

​According to question,

x /30+x =7/3

13x = 210+7x

210 = 6x

x = 35