Medium
A bag contains 8 red balls and 4 blue balls. A ball is drawn at random. What is the probability that it is red?
Explanation
Explanation
Total number of balls = 8 + 4 = 12. Number of favourable outcomes (red balls) = 8. P(red) = 8/12 = 2/3 in lowest terms.
PRO TIP
Re-check your working by substituting the answer back into the original question.