Sample Paper of Maths(BCA-1)

8. What is contra positive of
A student, who studies well, will pass.

If a student does not pass, then he does not study well.
If a student passes, then he studies well.
If a student studies well, then he will pass.
If a student does not study well, then he will not pass.

9. Which of the following is a contradiction?

q ( p
~p v (p v q)
(p ^ q) ^ (~p)
r ^ (~r v ~s)

10. (~p ^ (~q ^ r)) v (q ^ r) v (p ^ r) is logically equivalent to

T
p
q
r

11. In the Implication p ( q. p and q are called as respectively.

a) Antecedent and Hypothesis
b) Consequent and Conclusion
c) Antecedent and Consequent
d) None of these

12. A monoid is a semi Group which satisfies

Associative Law
Commutative Law
Identity property
Inverse property

13. The set Z under the Binary operation ‘ - ‘ is

Algebraic system
Semi Group
Monoid
Group

14. The set A = { 2,4,6,8,……} under the Binary Operation ‘ + ‘ is


Algebraic system
Semi Group
Monoid
Group

15. An Identity element for the set Z under the Binary operation ‘ X ‘ (multiplication)

-1
0
1
None of these


16. All Group are

Semi Group
Monoid
Abelian Group
Algebraic System

Only I
I and II
I , II and IV
I , II , III and IV

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