A bag contains 3 white, 6 red, 5 blue identical balls. A ball is picked
MATHEMATICS
WAEC 1997
A bag contains 3 white, 6 red, 5 blue identical balls. A ball is picked at random from bag. What is the probability that is either white or blue?
- A. 9/14
- B. 4/7
- C. 3/7
- D. 5/14
Correct Answer: B. 4/7
Explanation
P(W or B) = 3/14 + 5/14 = 4/7
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