Question

a bag contains 5 red ,4 blue , 3 green balls is taken out of the bag at random . find the probability taht the selected ba is (a) of red colour not of green colour

Answer 1

5/12 because there are 5 red ball and 12 no. of total ball

Answer 2

total ball in the bag=12
p(red)=5/12
probaility of not green=9/12