In a certain senior class, 75 percent of the male students : DS Archive - Page 2
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# In a certain senior class, 75 percent of the male students

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Joined: 03 Jan 2005
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11 Apr 2006, 05:39
You guys are thinking too much for this question. If we know 75% of A is something, and 80% of B is something. Then if we combine the two we know the the total percentage would be between 75%-80%. And the final percentage is strictly dependent on the ratio of the two. If we get final percentage is 75% we know we have 100% A and if the final percentage is 80% we know we have 100% B. Otherwise it'll be somewhere in between.

Sometimes it's enough to just use your intuition.
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11 Apr 2006, 05:39

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