Soal SMA · Soal cerita · Kesulitan 3/5
A bag contains 5 red balls, 3 blue balls, and 2 green balls. Two balls are drawn at random without replacement. What is the probability that both balls are red?
- A.1/9
- B.2/9
- C.1/3
- D.4/9
Kunci jawaban & pembahasan
Jawaban: 2/9
Total balls = 10. Probability first red = 5/10 = 1/2. After removing one red, 4 red left out of 9. Probability second red = 4/9. Product = (1/2)×(4/9) = 4/18 = 2/9. Correct.
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