Friday, 20 March 2015

Reasoning Questions With Explanation

In the following questions(1-4), the symbol  × , ? , % ,   © , @ , are used with the following illustrations.

 P % Q means P is not smaller than Q
 P © Q means P is neither smaller than nor equal to Q
 P x Q means P is neither greater than nor equal to Q
 P ? Q means P is not greater than Q
 P @ Q means P is neither greater than nor smaller than Q

1. Statement – R ? K , K x M ,M @ J
Conclusions -:
I.     J ©  K
II.   M © R
III.  R  X J

A. Only  I & I are true
B. Only II & III are true
C. Only I & III are true.
D. All I, II & III are true
E. None of these

2.    Statements –  Z @ M , M © K , K X F
Conclusions - :
I.     F © Z
II.   K X Z
III.  F © M

A. None is true
B. Only I is true
C. Only II is true
D. Only III is true
E. Only II & III are true.

3. Statements – V % H , H @ F , F ? E
Conclusions :-
I.     F @ V
II.   F X V
III.  E % H

A. Only either I or II is true
B. Only III is true
C. Only I & II are true
D. All I, II & III are true.
E. Only either I or II and three are true.

4.  Statements – W ©  T , T ? N , N % D
Conclusions :-
I.     D X T
II.   W © N
III.  D @ T

A. None in True
B. Only I is true
C. Only II is true
D. Only III is true
E. Only I & II are true

In the following questions(5-8), the Symbols @, ©, $ , % and # are used with the following meanings as illustrated below.

'A $ B' means 'A is not smaller than B'.
'A # B' means 'A is not greater then B'.
'A @ B' means 'A is neither smaller than nor equal to B'.
'A © B' means 'A is neither smaller than nor greater than B'.
'A % B' means 'A is neither greater than nor equal to B'.

In each of the following question assuming the given statements to be true, find out which of the two conclusions I and I I given below these are definitely true.

5.Statements: H % J, J © N, N @ R
Conclusions:
I. R % J
II. H @ J
III. N @ H

A. Only II is true 
B. Only I and III are true
C. Only I is true 
D. Only III is true
E. None of these


6. Statements: M @ J, J $ T, T © N
Conclusions:
I. N # J
II. T %M
III. M @ N

A. Only I and II are true 
B. Only II and III are true
C. Only I and III are true 
D. None of true
E. All are true

7.Statements: D © K, K # F, F @ P
Conclusions:
 I. P @ D
 II. K # P
III. F $ D

A. Only II is true
B. Only I and II are true
C. Only III is true 
D. Only II and III are true
E. None of these

8.Statements: K # N, N $ T, T % J
 Conclusions:
 I. J @ N
 II. K @ T
 III. T @ K

A. Only I and II are true 
B. Only II and III is true
C. Only I and III are true 
D. None is true
E. None of these

In the following questions(9-10) , the Symbols @, #, $ , % and * are used with the following meanings as illustrated below. 

'A $ B' means 'A is not smaller than B'.
'A % B' means 'A is not greater then B'.
'A @ B' means 'A is neither smaller than nor equal to B'.
'A * B' means 'A is neither greater than nor smaller than B'.
'A # B' means 'A is neither greater than nor equal to B'.

In each of the following question assuming the given statements to be true, find out which of the three conclusions I,II and III given below them is/are definitely true.

9. Statements: D * Q, Q @ L, L $ B, B # G
Conclusions:
 I. D @ B
 II. B * D
 III. G @ L


A. Either I or II only 
B. I and II only
C.) I only        
D. II and III only
E. None of these

10. Statements: Z @ Y, Y # K, K % M, M @ T
Conclusions:
I. Z @ M
II. Y @ T
III. Z # K

A. I only 
B. II and III only
C. Either I or II only 
D. All I,II and III
E. None of these

Answers with solutions

P % Q means P is not smaller than Q -----------------  [ P= Q ]
P © Q means P is neither smaller than nor equal to Q ---  [ P > Q]
P x Q means P is neither greater than nor equal to Q --------- [ P < Q ]
P ? Q means P is not greater than Q ---------- [  P =  Q  ]
P @ Q means P is neither greater than nor smaller than Q------- [ P=Q ]

 1. (D) 
Statement – R ? K ; K x M ; M @ J
                    R = K < M = J
Conclusions -:
I.     J ©  K -------    [  J > K ]
II.   M © R ----    [  M > R ]
III.  R  X J  ------    [  R < J  ]
Clearly All the conclusions are true

 2 -(C) 
Statements –  Z @ M ; M © K ; K X F
                                 Z = M  > K  < F
Conclusions - :
I.     F © Z ----------  [ F > Z ] cannot be said.
II.   K X Z ---------   [ K < Z ] Surely it is
III.  F © M --------    [ F > M ] cannot be said
So Only II is correct.

3- (E)
Statements – V % H ; H @ F ; F ? E
                               V = H = F = E
Conclusions :-
I.     F @ V ----    [ F=V ] not sure may nor may not be
II.   F X V ---------   [ F < V ] Not sure may or may not be
III.  E % H ------- [ E = H ] Surely.
But here F= H & H = V so indirectly F=V so either F= V or F < V but not both at a time, but at least one has to hold. So either I or II should be there and III is always right. So answer is either I or II  & III are correct.

4 -(A) 
Statements – W ©  T ; T ? N ; N % D
       Means – W > T
               N = T
               N = D  
Conclusions :-
I.     D X T  -----  [ D < T ] cannot be said. No idea of relation between them
II.   W © N -- [ W > N ] cannot be said
III.  D @ T -- [ D = T ]  cannot be said.
So here None is true.

A $ B means A not a less than B Therefore, A = B
A # B means A not a greater than B Therefore, A = B
A @ B means A not a less than B and A ? B Therefore, A = B
A © B means A not a less than B and A !> B Therefore, A = B
A % B means A not a greater than B and A ? B Therefore, A < B

5.(B)  
H % J  = H < J
    J © N  = J = N
   N @ R  = N > R
   Therefore, H < J = N > R

Conclusions:
I. R % J  = R < J ( True )
II. H @ J  =H > J ( Not true)
III. N @ J   =N > H (True)

6.(E)
M % J  = M  > J
J $ T  = J = T
T © N  =T = N
Therefore, M > J = T = N

Conclusions:
I. N # J  = N = J ( true )
II. T % M  = T < M ( true)
III. M @ N  =M > N ( true)

7.(C)
D © K -> D = K
K # F -> K = F
F @ P -> F > P
Therefore, D = K = F > P

Conclusions:
I. P @ D -> P > D ( Not true )
II. K # P -> K = P ( Not true )
III.F $ D -> F = D ( True )

8. (D)
K # N -> K = N
N $ T -> N = T
T % J -> T > J
Therefore, K = N = T > J
Conclusions:
I. J @ N -> J > N ( Not true )
II. K @ T -> K > T ( Not true )
III.T @ K -> T > K ( Not true )

9. (C)
Statements D * Q -> D = Q
D @ L -> Q > L
L $ B -> L = B
B # G -> B < G
Therefore, D = Q > L = B < G
Conclusions:
I. D @ B -> D > B ( True )
II. B * D -> B = D ( Not true)
III.G @ L -> G < L (Not true)

10.(E)
Statements: Z @ Y -> Z > Y
Y # K -> Y < K
K % M -> K = M
M @ T -> M > T
Therefore, Z > Y < K = M > T
Conclusions:
I. Z @ Y -> Z > Y (Not true )
II. Y @ T -> Y > T ( Not true)
III.Z # K -> Z < K (Not true)

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