Soal SMA · Soal cerita · Kesulitan 3/5

A bag contains 4 white and 6 black balls. Two balls are drawn at random without replacement. What is the probability that they are of different colors?

A.8/15
B.7/15
C.2/5
D.3/5

Kunci jawaban & pembahasan

Jawaban: 8/15

P(different) = P(WB)+P(BW) = (4/10)(6/9)+(6/10)(4/9)=24/90+24/90=48/90=8/15.

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