| 1 |
A groupoid (S) is called __________ if it is associative in S: |
- A. group
- B. abelian-group
- C. semi-group
- D. associative-group
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| 2 |
The number of subsets of a set having three elements is: |
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| 3 |
A declarative statement which is either true or false but not both is called: |
- A. logic
- B. proposition
- C. induction
- D. deduction
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| 4 |
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- A. A and B are power sets
- B. A and B are disjoint sets
- C. A and B are super sets
- D. A and B are equal sets
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| 5 |
A set having no element is called: |
- A. null set
- B. subset
- C. singleton
- D. superset
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| 6 |
If W = {0, 1, 2, 3, 4, ........}, N = {1, 2, 3, 4 ...........} then N - W = ? |
- A. W
- B. {0}
- C.
- D. none of these
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| 7 |
If A = {1, 2, 7, 9}, B = {1, 4, 7, 11}: |
- A. disjoints sets
- B. equal sets
- C. overlapping sets
- D. complementary sets
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| 8 |
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| 9 |
If a set is described by listing its elements within brackets is called: |
- A. set builder notation
- B. tabular form
- C. descriptive method
- D. none of these
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| 10 |
The ordered pairs (4, 5) and (5, 4) are: |
- A. same
- B. different
- C. both a and b
- D. N
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