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A jar contains 24 marbles, some are gree...

A jar contains `24` marbles, some are green and others are blue. If a marble is drawn at random from the jar, the probability that it is green is `2/3`. Find the number of blue balls in the jar.

Text Solution

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total no of marbles = 24
let green marbles be x
let blue marbles be `24-x`
let g be the event of taking out green marble
no of favourable outcomes`= x`
`P(g) = x/24= 2/3`
`x= 2/3*24=16`
no of green marble = 16
...
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Knowledge Check

  • A box contains 24 marbles, some are green and others are blue, if a marble is drawn at random from the box, the probablity that it is green is 2//3 . The number of blue balls in the box is

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