BTGmoderatorDC wrote:At a certain committee meeting only associate professors and assistant professors are present. Each associate professor has brought 2 pencils and 1 chart to the meeting, while each assistant professor has brought 1 pencil and 2 charts. If a total of 10 pencils and 11 charts have been brought to the meeting, how many people are present?
A. 6
B. 7
C. 8
D. 9
E. 10
Total number of items brought to the meeting = 21. (10 charts and 11 pencils)
Number of items brought by each person = 3. (Either 2 pencils and 1 chart or 1 pencil and 2 charts)
Thus:
Number of people = (total number of items)/(number of items per person) = 21/3 = 7.
The correct answer is
B.
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