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Due Date: April 28, 2011
Question 1; Mark: 5
From a group of 50 girls, 16 are taking Biology, 25 are taking Urdu and seven are in both classes,
i. How many girls are in neither class?
ii. How many are in either class?
(Use Venn diagram)
Question 2; Marks: 10
Determine whether the relation represented by the directed graph given below is reflexive, irreflexive, symmetric, antisymmetric and transitive. (Justify your answer against each property)
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