Question

bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is double that of a red ball, find the probability of drawing a blue ball. (Piz tell it in mcq)
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Answer 1

Answer:

Let the number of blue balls be x.

Number of red balls = 5

Total number of balls = x + 5

P (getting a red ball)

P (getting a blue ball)

Given that

$Let the number of blue balls be x.Number of red balls = 5Total number of balls = x + 5P (getting a red ball)P (getting a blue ball)Given thatBut number of balls cannot be negative.Hence, the number of blue balls is 10.$

Step-by-step explanation: