logo

Symbols and Notations Questions & Answers : Logical Reasoning


  • Instructions (1-2) :-
    Thease questions are based on the following information.
    ( I ) 'A * B' means 'A is brother of B'
    ( II ) 'A / B' means 'B is mother of A'
    ( III ) 'A – B' means 'A is father of B'
    ( IV ) 'A + B' means 'B is sister of A'
  • 1. Which of the following means L is daughter of H?
A.) L + K / J – H
B.) H – J * R + L
C.) L – J * H / K
D.) L + W * R / H

Answer: Option 'B'

H – J * R + L 
L -> Sister R ,
R -> Brother J,
J -> Fother H 
Therefore, L is daughter of H.

  • 2. How is S related to T in the Expression: T / P + S ?
A.) Daughter
B.) Sister
C.) Niece
D.) Aunt

Answer: Option 'D'

T / P + S 
S -> Sister P ,
P -> Mother T 
Therefore, P is the mother of T and S is the sister of P. 
Then S is Aunt of T.

  • Instructions (3 - 4) :-
    Thease questions are based on the following information.
    ( I ) 'A * B' means 'A is father of B'
    ( II ) 'A – B' means 'A is sister of B'
    ( III ) 'A + B' means 'A is mother of B'
    ( IV ) 'A/B' means 'A is sister of B'
  • 3. In the expression D + F * O / P, how is O related to D?
A.) Grand daughter
B.) Son
C.) Grand son
D.) Daughter

Answer: Option 'C'

D + F * O / P 
D + F means D is mother of F 
F * O means F is father of O 
O * P means O is brother of P 

  • 4. Which of the following represents ‘ J is son of F ‘’ ?
A.) J / R – T * F
B.) J + R – T * F
C.) J / M – N * F
D.) None of these

Answer: Option 'D'

A.) J / R – T * F 
J + R means J is brother of R 
R - T means R is sister of T 
T * F means T is fother of F 
Therefore, J is Uncle of F 
B.) J + R means J is Mother of R 
J is a female. 
C.) J / M means J is brother of M 
M – N means M is sister of N 
N * F means N is father of F 
Therefore J is uncle of F.

  • Instructions : (5 - 7) -
    In the following questions, the Symbols @, ©, $ , % and & are used with the following meanings as illustrated below.
    ‘A $ B’ means ‘A is not greater than B’.
    'A @ B' means 'A is neither smaller then nor equal to B'.
    'A & B' means 'A is neither greater than nor equal to B'.
    'A © B' means 'A is neither greater than nor smaller than B'.
    'A % B' means 'A is not smaller than 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 definitily true.
  • 5. Statements: 
    C & D, D $ E, E © F 
    Conclusions: 
    I .F @ C 
    II. E @ C
A.) If only conclusion I is true
B.) If only conclusion II is true
C.) If either conclusion I or conclusion II is true
D.) If both conclusions I and II are true.

Answer: Option 'D'

‘A $ B’ -> A !> B, therefore A = B. 
‘A @ B’ -> A B. 
‘A & B’ -> A !> B and A ‘A © B’ -> A !> B and A ‘A % B’ -> A C & D -> C < D 
D $ E -> D = E 
E © F -> E = F 
Therefore C < D = E = F 
Conclusions: 
1. F @ C -> F > C ( True ) 
2. E @ C -> E > C ( True )

  • 6. Statements: 
    D % H, H $ P, P @ Q 
    Conclusions: 
    I .D @ P 
    II. Q & H
A.) If only conclusion I is true
B.) If only conclusion II is true
C.) If either conclusion I or conclusion II is true
D.) If neither conclusion I nor conclusion II is true

Answer: Option 'D'

D & H -> D = H 
H $ P -> H = P 
P @ Q -> P > Q 
Therefore D = H = P > Q 
Conclusions: 
1. D @ P -> D > P ( Not True ) 

  • 7. Statements: 
    A © B, B % C, C & D 
    Conclusions: 
    I. C & A 
    II. C © A
A.) If only conclusion I is true
B.) If only conclusion II is true
C.) If either conclusion I or conclusion II is true
D.) If neither conclusion I nor conclusion II is true

Answer: Option 'C'

A © B -> A = B 
B % C -> B = C 
C & D -> C < D 
Therefore A = B = C < D 
Conclusions: 
1. C & A -> C < A ( Not True ) 
2. C © A -> C = A ( Not True ) 
C is either smaller than or equal to A. Therefore, either conclusion I or conclusion II is follows 

To whom this Symbols and Notations Question and Answers section is beneficial?

Students can learn and improve on their skillset for using Symbols and Notations effectively and can also prepare for competitive examinations like...

  • All I.B.P.S and Public Sector Bank Competitive Exam
  • Common Aptitude Test (CAT) Exams
  • UPSC Paper-II or CSAT Exams
  • SSC Competitive Exams
  • Defence Competitive Exams
  • NIIT online mock test
  • L.I.C Assistant Administrative Officer (AAO)/ G.I.C AAO and Clerk Competitive Exams
  • Railway Competitive Exam
  • University Grants Commission (UGC)
  • Career Aptitude Test (IT Companies) and etc.
$(document).ready(function(){ /*$('#sidebar').Stickyfill();*/ var sidebar = document.getElementById('sidebar'); Stickyfill.add(sidebar); });