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Director
Joined: 08 Jul 2004
Posts: 604
Followers: 2

Kudos [?]: 94 [0], given: 0

Hi all

In a school, 14% of students take drama and computers, and 67% take computer class. What is the probability that a student taking computers also takes drama?
Â Â Â Â Â 81%
Â Â Â Â Â Â 21%
Â Â Â Â Â Â 53%
Â Â Â Â Â Â None of the above
Director
Joined: 04 Jul 2004
Posts: 905
Followers: 4

Kudos [?]: 26 [0], given: 0

is it 21%?

P = 14/67 = 21%

Let me know if I have overlooked anything..
Director
Joined: 08 Jul 2004
Posts: 604
Followers: 2

Kudos [?]: 94 [0], given: 0

CIO
Joined: 09 Mar 2003
Posts: 463
Followers: 2

Kudos [?]: 35 [0], given: 0

I got that too.

If there are 100 people in the school, 14 take both, and 67 take computers all together. So that's 14/67.
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