Question

in a box containing 3 white , 4 red and , 5 green balls what is the probability that if a ball is taken out random it is red​

Answer 1

Step-by-step explanation:

possible outcome = 12

successful outcome = 4

probability of event = successful outcome / possible outcome

probability = 4/12 = 1/3

Answer 2

Given, the probability of an event can be given by

Favourable outcomes/ number of outcomes:

This can also be written as : no. of red balls/ total no. of balls

i.e; 4/3+4+5

4/12 = 1/3

That means every 1 out of 3 balls is going to red