Probability Puzzles
Hard
2 min
A bag contains 3 red, 4 blue and 5 green balls. One ball is selected at random. What is the probability that it is not blue?
Hint
Count red and green balls.
Answer
2/3.
Explanation
There are 8 non-blue balls out of 12 total balls.
Step-by-Step Solution
Non-blue = 3 + 5 = 8.
Total = 12.
Probability = 8/12 = 2/3.
Total = 12.
Probability = 8/12 = 2/3.