kenzieschulte kenzieschulte

07-05-2015
Mathematics

Answered

The computer repairman is given 6 computers to fix. He knows that among them there are 5 bad video cards and 4 failed hard drives. What is the probability that the first computer he tries has both problems?

Answer :

selenam selenam

07-05-2015

5/9 because...

Probability that the first one has a bad video card: 5/6

Probability that the first one has a failed hard drive: 4/6

5/6 x 4/6 = 20/36 = 5/9

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