Question

A bag has 4 red balls, 5 green balls and 3 yellow balls. If one ball is chosen at random, then the probability of getting a green or a red ball is

Answer 1

Answer:

9 or 3/4 probability or 75 % probability

Step-by-step explanation:

The number of balls in bag= total amount of balls of any color. hence 4 red balls+5 green balls+ 3 yellow balls= 4+5+3 balls=12 balls. hence, the probability of getting a random ball of supposed special unique characteristics is 1/12. however, we need balls of 2 colors: green or red.

there are 4 red balls or 4/12 of the total.

there are 5 green balls or 5/12 of the total.

hence, the probability of getting balls of this color is 4/12+5/12=9/12

9/12=3/4 converted to percentage is 3/4X100/1 % or 30000/400%.

=30000/400%=75% probability.