Medium
A bag contains 2 red balls and 5 blue balls. A ball is drawn at random. What is the probability that it is red?
Explanation
Explanation
Total number of balls = 2 + 5 = 7. Number of favourable outcomes (red balls) = 2. P(red) = 2/7.
PRO TIP
Re-check your working by substituting the answer back into the original question.