Copyright © www.www.examrace.com Q - In post office stamps are of 3 different denominations of Rs. 7, 8 and 10. The exact amount for which one cannot buy stamps is for: a) 19 b) 20 c) 23 d) 29 Answer: a) Explanation: 29 is possible by 7 + 7 + 7 + 8 23 is possible by 8 + 8 + 7 20 is possible by 10 + 10 Therefore only 19 is one that is not possible. Copyright © www.www.examrace.com Q - “If the large diamond is cut into small pieces, it will lose its value just as an army is divided into small units of soldiers it loses its strength.” The argument put above may be called as: a) Analogical b) Deductive c) Statistical d) Casual Answer: a) Explanation: An analogical statement is a statement that compares, or makes an analogy of, something and something else; in this statement it is comparing diamond to a army cop. Therefore, this argument is analogical. Copyright © www.www.examrace.com 3. If two prepositions having the same subject and predicate terms can both be true but cannot both be false. The relation between these two prepositions is known as: a) contradictory b) contrary c) subcontrary d) subaltern Answer: c) Explanation: There are four forms of logic opposition or we call it square of opposition: Contrary Opposition is between two universals which differ in quality. These are spilt true-false. “All dogs are animals” is true and “No dogs are animals” is false. Contraries cannot both be true. Sub-contrary Opposition is between two particulars which differ in quality. Both cannot be false. “Some cats are dogs” and “Some dogs are cats” are both false statements. Subcontraries can both be true, they cannot both be false. Subaltern Opposition is between two propositions which differ only in quantity. This implies if A is true, then I must be true. This also means that if I is true, then A need not be true. For example, “All corals are an animal” is true, then statement, “Some corals are an animal” is also true. But on the other hand, “Some dogs are black” is true but “All dogs are black” is not true.

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Q - In post office stamps are of 3 different denominations of Rs. 7, 8 and 10. The exact amount for which one cannot buy stamps is for: a) 19 b) 20 c) 23 d) 29

Answer: a) Explanation: 29 is possible by 7 + 7 + 7 + 8 23 is possible by 8 + 8 + 7 20 is possible by 10 + 10 Therefore only 19 is one that is not possible.

Q - “If the large diamond is cut into small pieces, it will lose its value just as an army is divided into small units of soldiers it loses its strength.” The argument put above may be called as: a) Analogical b) Deductive c) Statistical d) Casual

Answer: a) Explanation: An analogical statement is a statement that compares, or makes an analogy of, something and something else; in this statement it is comparing diamond to a army cop. Therefore, this argument is analogical.

3. If two prepositions having the same subject and predicate terms can both be true but cannot both be false. The relation between these two prepositions is known as: a) contradictory b) contrary c) subcontrary d) subaltern

Answer: c) Explanation: There are four forms of logic opposition or we call it square of opposition: Contrary Opposition is between two universals which differ in quality. These are spilt true-false. “All dogs are animals” is true and “No dogs are animals” is false.

Contraries cannot both be true. Sub-contrary Opposition is between two particulars which differ in quality. Both cannot be false. “Some cats are dogs” and “Some dogs are cats” are both false statements.

Subcontraries can both be true, they cannot both be false.

Subaltern Opposition is between two propositions which differ only in quantity. This implies if A is true, then I must be true. This also means that if I is true, then A need not be true. For example, “All corals are an animal” is true, then statement, “Some corals are an animal” is also true. But on the other hand, “Some dogs are black” is true but “All dogs are black” is not true.

Contradictory Opposition is between two propositions which differ both in quantity and in quality. If one proposition in a contradictory pair is true, the other must be false. For example, “No English are alcoholic” is contradicted by “Some English are alcoholic”

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