Question

A jar has 3 red , 4 blue, 5 green marbles. if a single marble is chosen at random, what is the probability of getting a red marble, a blue marble and a green marble
Please find the ans

Answer 1

Step-by-step explanation:

$probability = \frac{favourable outcomes}{no. of outcomes}$

1. FOR RED:

Here,

$probability = \frac{3}{12}$

                 $= \frac{1}{4}$

2. FOR BLUE:

Here,

$probability = \frac{4}{12}$

                 $= \frac{1}{3}$

3. FOR GREEN:

$probability = \frac{5}{12}$

Answer 2

probability = total no. of ways event can occur/ total events

so total balls = 3+4+5 = 12 balls

so , probability of getting red marble = 3/12 = 1/4

probability of getting blue ball = 4/12. = 1/3

probability of getting green marble = 5/12