Set Theory and Algebra MCQ

1:

 Let  D30 = {1, 2, 3, 5, 6, 10, 15, 30} and relation I be a partial ordering on D30. The lub of 10 and 15 respectively is

A.

30

B.

15

C.

10

D.

6

 

Answer : A

Explanation :

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Option: A

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