Logical Reasoning

Symbols and Notations-Symbols and Notations

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Symbols and Notations Aptitude basics, practice questions, answers and explanations 
Prepare for companies tests and interviews

 

SYMBOLS AND NOTATIONS

The questions can be based on

Blood Relations
Mathematical Operations (or Operator based questions)

1. Blood Relations

P x Q means P is the mother of Q

P + Q means P is the father of Q

P – Q means P is the son of Q

Which of the following means A is the Grandson of D ?

(1) A x C+D         
(2) A +B+D        
(3)D+B+A      
(4) A-B-D

Explanation:

A x C+D means A is the mother of C and C is the father of D Grandchild of A

A+B+D means A is the father of B and B is the father of D. Hence D is the Grandchild of A

D+B+A means D is the father of B and B is the father of A. Here A is the Grand child of D, but we don’t know whether he is the Grandson or Granddaughter of D

A-B-D means A is the son of B and B is the son of D.  Hence, A is the Grandson of D


2. Mathematical Operations

IF ‘+’ stands for ‘-‘ , ‘-‘ stands for ‘x’, ’x’ stands for ‘÷’and ‘÷’stands for ‘+’then what is the value of 56x7÷13-11+15-8÷2-7?

(1)30    
(2)45     
(3)60       
(4)90

Explanation:

Changing the symbols as given in the problem the above expression is

56÷7+13x11-15x8+2x7

Solving the BODMAS rule, we get 8+143-120+14=165-120=45

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