Question 726548
If 1/3 of the staff is on vacation, then 3/3 -1/3 = 2/3 remain.<P>
1/4 of (of means times) the remaining 2/3 is sick.  1/4 * 2.3 = 2/12 are sick.<P>
That leaves 2/3 - 2/12 = 8/12-2/12 = 6/12 = 1/2 of the staff in the office.
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