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CLASS 9TH MENTAL ABILITY CHAPTER SITTING ARRANGEMENT

 

SITTING   ARRANGEMENT


Ex.1 Read the information carefully and answer the question based on it.
        Five persons are sitting in a row. On of the two persons at the extreme ends in intelligent and other one is fair.

        A fat person is sitting to the right of a weak person. A tall person is to the left of the fair person and the

       weak person is sitting between the inellignt and the fat person.

1. Tall person is at which place counting from right?
                 (A) First             (B) Second
                 (C) Third            (D) Fourth

2.  Person to the left of weak person possesses which of the following characteristics ?
                 (A) Intelligent      (B) Fat
                 (C) Fair                (D) Tall

3.  Which of the following persons is sitting at the centre ?
                 (A) Intelligent    (B) Fat
                 (C) Fair              (D) Weak


Sol.  First information given in the question that one of the two persons at the extreme ends is intelligent

        and other one is fair suggest two figures as shown in fig. (1) and (2).

 

 


          information that a tall person is sitting to the left of fair person rules out the possibility of fig. (1) as no person in fig.

   (1)  can sit to the left of fair person. Therefore, only fig (2) shows the correct pesitions of intelligent and fair         

          persons. Now rest of the information regarding the position of other persons can easily be inserted.

          The final ranking of their sitting arrangement is as shown in fig(3).

 

 

    On the basis of the final arrangement we can easily find the answer to our questions.

1.     Tall person is at second place counting from right. So our answer is option (B).
2.     Person left of weak person possesses intelligence. Hence our answer is option (A).
3.     Fat person is sitting at the centre. So the answer is (B).

Ex. 2 Four men A, B, C and D and four women W, X, Y and Z are sitting round a table facing each other.
                      (i)   No two men or women are sitting together.
                     (ii)   W is to the right of B.
                    (iii)   Y is facing X and is to the left of A.
                    (iv )  C is to the right of Z.

1.    Who are the two persons sitting adjacent to D?
              (A) W and Y       (B) X and W
              (C) X and Z        (D) W and Z


Sol. Figure given here represents the exact position of all the eight persons. The sitting arrangement fulfills all the

        conditions given in the question. We observe from here that D is sitting between W and Y. Hence our answer is (A).

 

Analytical Reasoning

 

Ex.3  Read the following information carefully and answer the questions given below :
         Five cities A, B, C, D and E are famous for their lovely garden, fancy jewellery, educational institute,

        blue pottery and scents but not in the same order.
    (I)      A and C are neither educational centres nor have gardens.
    (II)     B and E are not famous for jewellary or pottery.
    (III)    Scents and jewellery have nothing to do with A.
    (IV)    D and E are not famous for garden and jewellary.
    (V)     D is not famous for educational institutes.

1.    Which of the following cities is famous for gardens ?
           (A) A        (B) C        (C) D        (D) B

2.    Blue pottery is avilable in which of the following cities ?
           (A) A        (B) C        (C) E        (D) B

3.    City E is famous for which of the following features ?
           (A) Jewellery     (B) Educational institute
           (C) Pottery         (D) Scents


Sol. This question can be solved easily with the help of Truth Table. Truth Table is an arrangement of the components

        given in a matrix form with one component in row and other component in cololmn. In our question, components

        given are city and feature, for which each city is famous. First arrange the components in matrix form with cities in

        column and features in row.
    As per (I) information, cross the possibility of garden and education centre in front of cities A and C.


    


    (i)     Also the possibility of jewellery and pottery  is ruled out in front of cities B and E, as per (II)

              information, Similarly, ciry A is crossed for scent and jewellry as per (III) information.
    (ii)     After using first three informations in the table, we see that only block uncrossed in front of city

              A is one related with pottery. So we know from here that city A is famous for pottery. In this block mark

              (ü) and cross the row and column of this block because one city is famous only for one feature.
    (iii)    Using information fourth in the table we know that city B is famous for garden and city C for

              jewellery. Cross row and column of each symbol (ü) obtained each time. This helps to dertermine one to one matching.
    (iv)    Last information helps us to know that city E is famous for educational institute helps us to know

             that city E is famous for educational institute and city D for scent. The final order of matching of cities and its features is as under—


   


       On the basis of table all questions can be answerd -
1.    City B is famous for Garden, hence answer is (D).

2.    City A is famous for Pottery, hence answer (A).

3.    City E is famous for Educational institute, hence answers is (B).

Ex.4 Read the following information carefully and answer the questions given below :
            Four youngment Raj, Sunder, Tarun and Upal are married to Rekha, Sunita, Tara and Uma and

            the couples live in Rampur, Sanchi Tirupati and Udhampur.
    (I)    The first letter of names of men, their wives and cities does not match.
    (II)   Sunita is not Raj's wife.
   (III)   Sunder does not live in Rampur or Udhampur and is not Rekha's husband. 
  (IV)    Upal and Tara do not live in Sanchi.

1.    Which pair given below is right combination of wife and city for Tarun?
                  (A) Sunita, Tirupati    (B) Tara, Sanchi
                  (C) Uma, Rampur      (D) Rekha, Sanchi

2.    Who among the following is the wife of Upal?
            (A) Rekha            (B) Sunita
            (C) Tara                (D) Uma

3.    Which of the following is the correct pair of husband and wife ?
             (A) Upal, Sunita         (B) Raj, Tara
             (C) Sunder, Uma        (D) All the above


Sol. This question is the same as the previous one but here in this question three components–Husband,

        Wife and City are given instead of two components as in the previous questions. First, arrange these

        components in Truth Table with Husband in column and Wife & City in row as under :

 

 

    (i)    With the help of first information, it can be concluded that Raj can not be married with Rekha

             and does not live in Rampur, Sunder can not be married with Sunita nor does he live in Sanchi, Tarun can not be

             married with Tara nor does he live in Tirupati and Upal cannot be married with Uma nor does he live in

             Udhampur. On the basis of this information, cross the respective block.
    (ii)    Using second information, cross the possibility of matching of Sunita with Raj.
    (iii)   Third information rules out the matching of Sunder with Rampur, Udhampur and Rekha.
    (iii)   Fourth information denies the matching of Upal with Sanchi. The part of this information, which

             denies the matching of Tara and Sanchi, can not be used in the Table now unless the husband of Tara is known.

             So keep the information to be used later on.
    (iv)   After using all these informations, we see that only city left in front of Sunder is "Tirupati" so, mark

            (ü) in this block crossing row and column of city to ensure one to one matching. As a result, we know that

             Upal lives in Rampur.
    (v)    Using information fourth that Tara does not live in Sanchi and information first again, we get the

             matching of Husband, Wife and City as under :

 

ASSIGNMENT

 

Sitting Arrangement

Directions : 


    Read the information carefully and answer the
    questions based on it.
    Four ladies A, B, C & D and four gentlemen E, F,
   G & H are sitting in a circle round a table facing
    each other.
(i)      No two ladies or two gentlemen are sitting side by side.
(ii)     C, who is sitting between G and E, is facing D.
(iii)    F is between D and A and is facing G.
(iv)    H is to the right of B.


Q.1    Who is sitting to the left of A ?
            (A) E    (B) F    (C) G    (D) H

Q.2    E is facing whom ?
            (A) F    (B) B    (C) G    (D) H

Q.3    Who are immediate neighbours of B ?
               (A) G and H     (B) E and F
              (C) E and H      (D) F and H

 

Directions : 


     Read the information carefully and answer the 
     questions based on it.
     Six persons are sitting in a circle. A is facing B.
     B is to the right of E and left of C. C is to the
     left of D. F is to the right of A. Now D exchanges
     his seat with F, and E with B.

Q.4    Who will be sitting to the left of D ?
            (A) B    (B) D    (C) E    (D) A

Q.5    Who will be sitting of the left of C ?
            (A) E    (B) F    (C) A    (D) B

Q.6    Who will be sitting opposite of A ?
            (A) E    (B) F    (C) D    (D) B


Q.7    Who will be sitting opsite of C ?
           (A) C    (B) D    (C) B    (D) A

 

Directions : 

 

      Read the information carefully and answer the
     questions based on it.
(i)      Eight persons E, F, G, H, I, J, K and L are seated around a square table two on each side
(ii)     There are three lady members and they are not seated next to each other
(iii)    J is between L and F
(iv)    G is between I and F
(v)     H, a lady memeber, is second to the left of J
(vi)     F, a male member, isseated opposite to E, a lady member
(vii)    There is a lady member between F and I


Q.8    Who among the following are the three lady members ?
                   (A) E, H and J      (B) E, G and J
                   (C) G, H and J     (D) None of these

Q.9    Which of the following is true about J ?
              (A) J is a male member
              (B) J is a femal member
              (C) Sex of J cannot be determined
              (D) Position of J cannot be determined

Q.10    Who among the following is seated between E and H ?
               (A) I        (B) J
               (C) F       (D) None of these

Q.11    Who among the following is to the immediate left of F ?
                     (A) G            (B) J
                     (C) I        
                     (D) Can't be determined

Q.12    How many persons are seated between K and F?
                      (A) One        (B) Two
                      (C) Three        
                      (D) Can't be determined

 

Analytical Reasoning

 

Directions : 

 

     Read the information carefully and answer the
     questions based on it.
    The members of a Bank are Mr. A, Mr. B, Mrs. C, Miss
     D, Mr. E and Miss F. The positions they occupy are
     Manager, Asstt. Manager, Cashier, Steno, Teller and
     a Clerk, though not necessarily in order. The Asstt.
     Mangager is Manager's grandson, Cashier is
     Stenographer's son-in-law. Mr A is bachelor. Miss D
      is teller's step-sister and Mr. E is Manager's neighbour.
      Mr B. cannot have a grandson or son-in-law as he
      is only 20 years old.

Q.13    Who is the Manager ?
           (A) Mr. A    (B) Mrs. C
           (C) Mr. E    (D) None of these

Q.14    Who is Asstt. Manager ?
             (A) Mr. A    (B) Miss F
             (C) Mrs. C    (D) Mr B

Q.15    Who is Teller ?
          (A) Miss F    (B) Mrs. C
          (C) Mr. A      (D) Miss D

Q.16    Who is Clerk ?
          (A) Mr. B      (B) Miss D
          (C) Miss F    (D) None of these
Q.17    Who is the Cashier ?
              (A) Either Mr. A or Mr. B
              (B) Miss F
              (C) Mr. A
              (D) None of these

 

Directions : 

 

      Read the information carefully and answer the
      questions based on it.
       Five women Madhu, Kanchan, Chandni, Sheela and
      Rekha are married to Doctor, Naval officer, Lawyer,
      Sales Manager and Engineer. The ladies are
      Accountant, Teacher and Doctor by profession,
      while two are housewives.
(I)      One husband and wife have same profession
(II)     Madhu and Kanchan are not housewives nor they are married to Doctor of Lawyer.
(III)    Sheela and Rekha are not Teacher or Accountant and their husbands are not Engineer or in Navy.
(IV)    The Sales Manager is not Madhu's or Chandni's husband. His wife is an accountant.
(V)      Rekha is not a Doctor.
(VI)    Chandni is not a Teacher and the Teachter's husband is Naval officer.
Q.18    Who among following is engaged in doctor's profession with her husband ?
              (A) Sheela      (B) Rekha
              (C) Madhu     (D) Chandni

Q.19    Which of the following pairs is the correct match of husband-wife ?
              (A) Naval Officer, Kanchan
              (B) Sales Manager, Madhu
              (C) Lawyer, Sheela
              (D) Engineer, Chandni

Q.20    Who among the following are house wives ?
                (A) Chandni, Rekha    (B) Sheela, Chandni
                (C) Madhu, Rekha       (D) Chandni, Madhu

Q.21    Who is the wife of Engineer ?
                 (A) Teacher          (B) Accountant
                 (C) House wife    (D) Doctor

Q.22    Naval officer is the husband of which lady 
                (A) Kanchan    (B) Rakha
                (C) Chandni     (D) Madhu

 

Directions : 

 

       Read the information carefully and answer the
       questions based on it.
       P, Q, R, S, T and U are six students procuring their
       master's degree in six different subjects-English,
       History, Philosophy, Physics, Statistics and Maths.
 (I)    Two of them stay in hostels, two stay as paying guests and the remaining two stay at their home.
(II)    R does not stay as paying guest and studies Philosophy.
(III)   The students studying statistics and History don't stay as paying guest.
(IV)   T studies Maths and S studies Physics.
(V)    U & S stay in hostel. T stays as paying guest and Q stays at home.

Q.23    Which of the following pair of students stay one each at hostel and at home ?
                (A) U, S         (B) S, R
                (C) Q, R         (D) Data inadequate

Q.24    Who studies English ?
                 (A) S        (B) T, Q
                 (C) U        (D) None of these

Q.25    Which of the following pair of students stay at home ?
                 (A) P, Q           (B) Q, R    
                 (C) R, S           (D) S, T

Q.26    Which of the following combination of subjects & places of stay is not correct ?
                (A) Physics-Hostal         (B) English-Hostal
                (C) Philosophy-Home    (D) Maths-P.G.

Q.27    Which subject does Q studies ?
            (A) History    
            (B) Statistics
            (C) History or Statistics
            (D) Data inadequate

 

Directions :

 

  Read the information carefully and answer the
  questions based on it.
  There are five persons P, Q, R, S and T. One is
  football player, one is chess player, one is hockey
  player. P and S are unmarried ladies and do not
  participate is any game. None of the ladies plays
  chess or football. There is a married couple in
  which T is the husband. Q is the brother of R and
  is neither a chess player nor a hockey player.

Q.28    Who is the football player ?
                (A) P       (B) Q
                (C) R      (D) S

Q.29    Who is the hockey player ?
              (A) T    (B) S    
              (C) R    (D) Q

Q.30    Who is the chess player ?
              (A) S    (B) P    
              (C) T    (D) R

Q.31    Who is the wife of T ?
             (A) P    (B) Q    
             (C) R    (D) S
Q.32    Which of the following is the correct group of ladies ?
                  (A) P, Q and R    (B) Q, R  and S
                  (C) P, Q and S     (D) P, R and S

 

Directions : 

 

    Read the information carefully and answer the
    questions based on it.
   There are four persons A, B, C and D. One of them
   is a Lecturer and plays Football and Cricket. A and
   B are Accountants. A Plays Badminton. Both the
   Accountants are Swimmers. D is a Bank clerk. One
    Accountant also plays Tennis. The Bank clerk plays
   Carrom and is a Swimmer. All the four persons play
   two games each and follow one profession.


Q.33    Who is the Lecturer ?
           (A) A    (B) B    (C) C    (D) D

Q.34    Who can not swim ?
           (A) A    (B) B    (C) C    (D) D

Q.35    Who plays Tennis ?
           (A) A    (B) B    (C) C    (D) D

Q.36    Who plays Badminton and is an Accountant 
           (A) A    (B) B    (C) C    (D) D

Q.37    Who plays Tennis and is an Accountant ?
           (A) A    (B) B    (C) C    (D) D

 

Directions : 

 

        Read the information carefully and answer the
        questions based on it.
(I)    There are five teachers A, B, C, D and E who teach different subjects.
(II)   B teaches psychology and is ph. D. D teaches sociology and he is also ph. D.
(III    Lady teachers neither teach Education nor Management.
(IV)   A and C are not Ph. D and A does not teach equation

Q.38    Who teaches Management ?
              (A) E     (B) D
              (C) A     (D) Either B or C

Q.39    Who teaches Education ?
                  (A) A    (B) B
                  (C) C    
                  (D) Can't be determined

Q.40    Which of the following statements is true ?
               (A) Both ladies are Ph. D
               (B) The person. who teaches Management is Ph.D
               (C) All male members are Ph. D
               (D) the teacher, who teaches Sociology, is man

Q.41    Who teaches Anthropology ?
                (A) A     (B) D    
                (C) E     (D) B
Q.42    Who are the male members ?
               (A) ABC      (B) BCD
               (C) ACB      (D) None of these

 

Directions :  

 

      Read the information carefully and answer the
      questions based on it.
(I)     A, B, C, D, E and F are six members in the family, There are two pair of couples in the group.
(II)    There are two Engineers, one Teacher, one Sociologist and two Artists. Both the Engineers are of the same sex.
(III)   A and C are in the same profession.
(IV)   The teacher is married to the Engineer and the Artist is married to lady Sociologist.
(V)    A is an Artist. E is a male Engineer. Both of them are unmarried.
(VI)   F is B's husband.

Q.43    Who is married with the Teacher ?
            (A) F     (B) C    
            (C) E     (D) B

Q.44    Who is Sociologist by profession ?
             (A) B     (B) F
             (C) C     (D) None of these

Q.45    Which of the followings are the pairs of couples?
                 (A) FD and BD     (B) CD and FB
                 (C) CD and FD    
                 (D) Can'tbe determined

Q.46    What is the profession of B ?
            (A) Engineer       (B) Teacher
            (C) Sociologist    (D) Artist

 

ANSWER   KEY

 

     1)      B    2)      D     3)      A    4)       D      5)      A     6)      A      7)      B     8)    D     9)      A    10)     D 

     11)    B    12)    C     13)    B    14)     A      15)     A    16)     B     17)    D    18)    A    19)     D    20)     A    

     21)    C    22)    D    23)     B    24)     D      25)     B    26)    B    27)     C    28)    B     29)    C    30)     C  

     31)    C    32)    D    33)     C    34)     C      35)     B    36)     A    37)     B    38)    C    39)     C    40)      A 

     41)    C    42)    D    43)     A    44)      D     45)     B    46)     B    

 



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