Validity-of-Arguments
Question 1 |
Which one of the following is not an argument ?
Devadutt does not eat in the day so he must be eating at night. | |
If Devadutt is growing fat and if he does not eat during the day, he will be eating at night. | |
Devadutt eats in the night so he does not eat during the day. | |
Since Devadutt does not eat in the day, he must be eating in the night. |
Question 1 Explanation:
Argument: An exchange of diverging (or) opposite views.
→ Option B is not an argument.
→ Option B is not an argument.
Question 2 |
When in a group of propositions, one proposition is claimed to follow from the others, that group of propositions is called
An argument | |
A valid argument | |
An explanation | |
An invalid argument |
Question 2 Explanation:
Argument:- Set of reasons given in support of an idea, theory (or) action.
Question 3 |
Given below are two premises. Four conclusions are drawn from those two premises in four codes. Select the code that states the conclusion validly drawn.
Premises:
(i) All saints are religious. (major)
(ii) Some honest persons are saints. (minor)
Premises:
(i) All saints are religious. (major)
(ii) Some honest persons are saints. (minor)
All saints are honest | |
Some saints are honest. | |
Some honest persons are religious. | |
All religious persons are honest |
Question 4 |
Given below are two premises and four conclusions drawn from those premises. Select the code that expresses conclusion drawn validly from the premises (separately or jointly).
Premises:
(a) All dogs are mammals.
(b) No cats are dogs.
Conclusions:
(i) No cats are mammals
(ii) Some cats are mammals.
(iii) No Dogs are cats
(iv) No dogs are non-mammals.
Premises:
(a) All dogs are mammals.
(b) No cats are dogs.
Conclusions:
(i) No cats are mammals
(ii) Some cats are mammals.
(iii) No Dogs are cats
(iv) No dogs are non-mammals.
(i) only | |
(i) and (ii) | |
(iii) and (iv) | |
(ii) and (iii) |
Question 4 Explanation:
Question 5 |
Given below are two premises, with four conclusions drawn from them (taking singly or together); which conclusions are validly drawn? Select the correct answer from the codes given below:
Premises:
(i) All bats are mammals.
(ii) Birds are not bats.
Conclusions:
(a) Birds are not mammals.
(b) Bats are not birds.
(c) All mammals are bats.
(d) Some mammals are bats.
Premises:
(i) All bats are mammals.
(ii) Birds are not bats.
Conclusions:
(a) Birds are not mammals.
(b) Bats are not birds.
(c) All mammals are bats.
(d) Some mammals are bats.
(a), (b) and (d) | |
(b) and (d) | |
(a) and (c) | |
(b), (c) and (d) |
Question 5 Explanation:
Question 6 |
Given below two premise and four conclusions are drawn from them (taking singly or together). Select the code that states the conclusion validly drawn.
Premises: (i) All religious persons are emotional.
(ii) Ram is a religious person.
Conclusion: (a) Ram is emotional.
(b) All emotional persons are religious.
(c) Ram is not a non-religious person.
(d) Some religious persons are not emotional.
Premises: (i) All religious persons are emotional.
(ii) Ram is a religious person.
Conclusion: (a) Ram is emotional.
(b) All emotional persons are religious.
(c) Ram is not a non-religious person.
(d) Some religious persons are not emotional.
(a), (b), (c) and (d) | |
(a) only | |
(a) and (c) only | |
(b) and (c) only |
Question 6 Explanation:
Question 7 |
A Cluster of propositions with a structure that exhibits some inference is called
An inference | |
An argument | |
An explanation | |
A valid argument |
Question 7 Explanation:
Argument:- Set of reasons given in support of an idea, action (or) theory.
Question 8 |
Given below are two premises (a) and (b). Four conclusions are drawn from them. Select the code that embodies validly drawn conclusion(s) (taking the premises individually or jointly).
Premises:
(a) All saints are noble.
(b) Some religious men are saints.
Conclusions:
(i) Some religious men are noble.
(ii) All religious men are noble.
(iii) Some saints are religious men.
(iv) All noble persons are saints.
Premises:
(a) All saints are noble.
(b) Some religious men are saints.
Conclusions:
(i) Some religious men are noble.
(ii) All religious men are noble.
(iii) Some saints are religious men.
(iv) All noble persons are saints.
(i) and (ii) | |
(ii) and (iii) | |
(i) and (iii) | |
(i) and (iv) |
Question 8 Explanation:
Question 9 |
Given below are two premises (a and b), from those two premises four conclusions (i), (ii), (iii) and (iv) are drawn. Select the code that states the conclusion/conclusions drawn validity (taking the premises singularly or jointly).
Premises:
(a) All bats are mammals.
(b) No birds are bats.
Conclusions:
(i) No birds are mammals.
(ii) Some birds are not mammals.
(iii) No bats are birds.
(iv) All mammals are bats.
Premises:
(a) All bats are mammals.
(b) No birds are bats.
Conclusions:
(i) No birds are mammals.
(ii) Some birds are not mammals.
(iii) No bats are birds.
(iv) All mammals are bats.
(i) and (ii) only | |
(iii) only | |
(iii) and (iv) only | |
(i) only |
Question 9 Explanation:
There are 9 questions to complete.