IBPS Clerk Prelims: Reasoning Day 19

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Stratus – IBPS Clerk Course 2015 

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Directions (1 – 5):
(A) only 1st follows
(B) only 2nd follows
(C) either 1st or 2nd
(D) neither 1st nor 2nd
(E) both 1st and 2nd

1. Statements: No post is a mail. All mails are letters. Some posts are offices.
   Conclusions:
   I. All posts are letters is a possibility.
   II. No letter is a post.
   

   Answer & Explanation

   (A) only 1st follows
   Explanation:
   For I –
   II is not definite.
   
   
2. Statements: All numbers are digits. Some digits are letters. All letters are alphabets.
   Conclusions:
   I. No number is a letter
   II. Some alphabets are digits
   

   Answer & Explanation

   (B) only 2nd follows
   Explanation:
   I is not definite
   
   
   
3. Statements: Some cells are tissues. All tissues are bones. No bone is a ligament.
   Conclusions:
   I. Some ligaments are not tissues.
   II. Some bones are cells
   

   Answer & Explanation

   (E) both 1st and 2nd
   Explanation:
   All ligaments are tissues is not a possibility so I follows.
   
   
4. Statements: Some schools are colleges. No school is a nursery. All nurseries are playgrounds.
   Conclusions:
   I. Some colleges are playgrounds
   II. Some schools are not playgrounds
   

   Answer & Explanation

   (D) neither 1st nor 2nd
   Explanation:
   I is not definite.
   All schools are playgrounds is a possibility, so II does not follow.
   
   
   
5. Statements: All metals are plastics. All plastics are cloth. All cloth are threads.
   Conclusions:
   I. All metals are threads
   II. No thread is cloth
   

   Answer & Explanation

   (A) only 1st follows
   Explanation:
   I follows from all the three statement.
   II is incorrect
   
   

Directions (Q.6 – 10): Study the following information to answer the given questions:

6. In which of the following expressions will the expression ‘H < J’ definitely true?
   A) G < H ≥ I = J
   B) H > G ≥ I = J
   C) J = I ≥ G > H
   D) H ≥ G > I < J
   E) None of these
   

   Answer & Explanation

   C) J = I ≥ G > H
   Explanation:
   In A) – H ≥ J.
   In B) – H > J
   In D) No relation between H and J
   
   
   
7. Which of the following expressions will be true if the expression ‘K ≥ L > M ≥ N’ is definitely true?
   A) N ≤ K
   B) K = M
   C) K < N
   D) L ≥ N
   E) None of these
   

   Answer & Explanation

   E) None of these
   Explanation:
   N < K, K > M, K > N, L > N
   
   
8. Which of the following expressions will be true if the expression ‘M ≥ K < T = Q’ is definitely true?
   A) Q < K
   B) M ≥ T
   C) M < Q
   D) T = M
   E) None of these
   

   Answer & Explanation

   E) None of these
   Explanation:
   Q > K, no relation between M and T, no relation between M and Q, no relation between M and T
   
   
9. Which of the following expressions may not be true if the expression ‘Z ≥ Y = W ≤ X’ is definitely true?
   A) W ≤ Z
   B) X ≥ Z
   C) Y ≤ X
   D) only B and C
   E) All are true
   

   Answer & Explanation

   B) X ≥ Z
   Explanation:
   Z ≥ Y = W , so Z ≥ W, so A is true
   Y = W ≤ X, so Y ≤ X, so C is true
   
   
10. In which of the following expressions does the expression ‘A > D’ hold true?
    A) A = B < C < D
    B) D ≥ B > C > A
    C) B = D > C ≥ A
    D) A ≥ C > B = D
    E) D ≤ B > A > C
    

    Answer & Explanation

    D) A ≥ C > B = D
    Explanation:
    In options A, B, C – A < D, in option E, nor relation between A and D