Question

a box containing 3 blue 2 white and 4 red balls if marble is drawn at random from the box what is the probability that will be white blue red​

Answer 1

Answer:

Required answer:-

total possibility=3+2+4

=9

Now,

Number of blue balls=3

probability of blue balls = Number of blue balls

total probability

= 3

9

=1/3

Number of white balls=2

probability of white balls=number of white balls

total probability

=2

9

Number of red balls=4

probability of red balls = number of red balls

total probability

= 4

9

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Answer 2

✬ White, Blue, Red = 2/9, 1/3, 4/9 ✬

Given:

A box contains 3 blue , 2 white & 4 red marbles.

A marble is drawn at random from the box.

To Find:

Probability of getting each coloured marbles.

Solution: Total number of marbles in the box will be

Blue + White + Red

3 + 2 + 4 = 9

➟ Total outcome = 9

➟ Favourable outcome = 2 white balls

★ Probability = Favourable/Total outcome ★

$\implies{\rm }$ P (White ball) = 2/9

∴ Probability of getting a white ball is 2/9.

___________________

➟ Total outcome = 9

➟ Favourable outcome = 3

$\implies{\rm }$ P (Blue ball) = 3/9 = 1/3

∴ Probability of getting a blue ball is 1/3.

___________________

➟ Total outcome = 9

➟ Favourable outcome = 4

$\implies{\rm }$ P (Red ball) = 4/9

∴ Probability of getting a red ball is 4/9.