Q. From the given four statements, select the two which cannot be true but yet both can be false. Choose the right pair:

(i) All men are mortal
(ii) Some men are mortal
(iii) No man is mortal
(iv) Some men are not mortal

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Q. A Syllogism must have:

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Q. Copula is that part of proposition which denotes the relationship between:

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Q. “E” denotes:

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Q. ‘A’ is the father of ‘C’, and ‘D’ is the son of ‘B’. ‘E’ is the brother of ‘A’. If ‘C’ is the sister of ‘D’, how is ‘B’ related to ‘E’ ?

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Q. In the sequence of numbers 8, 24, 12, X, 18, 54 the missing number X is :

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Q. If A stands for 5, B for 6, C for 7, D for 8 and so on, then the following numbers stand for 17, 19, 20, 9 and 8 :

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Q. The letters in the first set have certain relationship. On the basis of this relationship what is the right choice for the second set ?

AST : BRU : : NQV : ?

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Q. In a certain code, PAN is written as 31 and PAR as 35. In this code PAT is written as:

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Q. Which one of the following statements is completely non-sensical ?

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Q. Which of the following statements are mutually contradictory ?

(i) All flowers are not fragrant.
(ii) Most flowers are not fragrant.
(iii) None of the flowers is fragrant.
(iv) Most flowers are fragrant.

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Code :

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Q. Which of the following statements say the same thing ?

(i) “I am a teacher” (said by Arvind)
(ii) “I am a teacher” (said by Binod)
(iii) “My son is a teacher” (said by Binod’s father)
(iv) “My brother is a teacher” (said by Binod’s sister)
(v) “My brother is a teacher” (said by Binod’s only sister)
(vi) “My sole enemy is a teacher” (said by Binod’s only enemy)

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Code :

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Q. Which of the following are correct ways of arguing ?

(i) There can be no second husband without a second wife.
(ii) Anil is a friend of Bob, Bob is a friend of Raj, hence Anil is a friend of Raj.
(iii) A is equal to B, B is equal to C, hence A is equal to C.
(iv) If everyone is a liar, then we cannot prove it.

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Code :

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Q. Which of the following statement/s are ALWAYS FALSE ?

(i) The sun will not rise in the East some day.
(ii) A wooden table is not a table.
(iii) Delhi city will be drowned under water.
(iv) Cars run on water as fuel.

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Code :

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Q. In a certain code, FHQK means GIRL. How will WOMEN be written in the same code?

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Q. At what time between 4 and 5 O'clock will the hands of a watch point in opposite directions?

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Q. Which of the following conclusions is logically valid based on statement given below?

Statement: Most teachers are hard working.

Conclusions:
(I) Some teachers are hard working.
(II) Some teachers are not hard working.

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Q. Which of the following conclusions is logically valid based on statement given below?

Statement: Most of the Indian states existed before independence.

Conclusions:
(I) Some Indian States existed before independence.
(II) All Indian States did not exist before independence.

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Q. Direction for this question:
Given below are two statements (a) and (b) followed by two conclusions (i) and (ii). Considering the statements to be true, indicate which of the following conclusions logically follow from the given statements by selecting one of the four response alternatives given below the conclusion :

Statements:
(a) all businessmen are wealthy.
(b) all wealthy people are hard working.

Conclusions:
(i) All businessmen are hard working.
(ii) All hardly working people are not wealthy

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Q. Insert the missing number:

8 24 12 ? 18 54

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