In a classroom of 27 students, 11 students have a blue pen, 12 students have a red pen, 7 students carry both a blue pen and pencil, 5 students carry a pencil and a red pen, 4 students carry 2 pens - one red and one blue, 2 students come prepared with one of each type of writing utensil, and 3 students consistently come to class with nothing to write with on paper and borrow from their study buddy. How many students carry only a pencil?
In a classroom of 27 students, 11 students have a blue pen, 12 students have a red pen, 7 students carry both a blue pen and pencil, 5 students carry a pencil and a red pen, 4 students carry 2 pens - one red and one blue, 2 students come prepared with one of each type of writing utensil, and 3 students consistently come to class with nothing to write with on paper and borrow from their study buddy. How many students carry only a pencil?
Operations Research : Applications and Algorithms
4th Edition
ISBN:9780534380588
Author:Wayne L. Winston
Publisher:Wayne L. Winston
Chapter19: Probabilistic Dynamic Programming
Section19.4: Further Examples Of Probabilistic Dynamic Programming Formulations
Problem 7P
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In a classroom of 27 students,
11 students have a blue pen,
12 students have a red pen,
7 students carry both a blue pen and pencil,
5 students carry a pencil and a red pen,
4 students carry 2 pens - one red and one blue,
2 students come prepared with one of each type of writing utensil,
and 3 students consistently come to class with nothing to write with on paper and borrow from their study buddy.
How many students carry only a pencil?
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