Solve Inequalities, Inequalities Problems Solve, Reasoning Section

Tips to Solve Inequalities Problems in Reasoning Section

First you should know the type of conclusions which are possible for the different inequalities statements.
The following table provides the conclusions which follows from different statements:
S.No.StatementsConclusions which follows
1A = B > CA > C
2A > B = C
3A > B ≥ C
4A ≥ B > C
5A > B > C
6A = B < CA < C
7A < B = C
8A < B ≤ C
9A ≤ B < C
10A < B < C
11A = B ≥ CA ≥ C
12A ≥ B = C
13A ≥ B ≥ C
14A = B ≤ CA ≤ C
15A ≤ B = C
16A ≤ B ≤ C
17A < B > CNo Relationship between A and C
18A > B < C
19A < B ≥ C
20A ≤ B > C
21A > B ≤ C
22A ≥ B < C
The following table provides the conclusions when the answer is either I or II conclusion is correct:
S.NoStatementsEither I or II follows
1A = B ≥ CI. A > C
II. A = C
2A ≥ B = C
3A ≥ B ≥ C
4A = B ≤ CI. A < C
II. A = C
5A ≤ B = C
6A ≤ B ≤ C
7A < B > Ca) I. A > C         II. A ≤ C
b) I. A < C         II. A ≥ C
8A > B < C
9A < B ≥ C
10A ≤ B > C
11A > B ≤ C
12A ≥ B < C
Notice that the statements in table 2 are same as statements 11-22 of the first table. When these conclusions are given in pair the answer is either I or II and when only 1 of these conclusions is given then it does not follow.
The questions on inequalities are asked in 2 types:
TYPE I: Indirect inequalities
In this you are given inequalities in indirect way like
‘P # Q’ means ‘P is neither greater than nor equal to Q’.
‘P © Q’ means ‘P is neither equal to nor smaller than Q’.
‘P % Q’ means ‘P is neither smaller than nor greater than Q’
‘P $ Q’ means ‘P is not smaller than Q’.
‘P @ Q’ means ‘P is not greater than Q’.
When this type of information is given, first write on the paper what these symbols mean, like here
# means <
© means >
% means =
$ means 
@ means 
Example statement: L $ T, T % P, K © P
Now write the relation between elements in a single line by checking the above meanings of symbol as L ≥ T = P < K [Here K > P, but to write in a single line we will write as P < K]
Conclusions:         I. P @ L                    II. L © K                   III. L @ K
I – L ≥ T = P means L ≥ P which is conclusion I P ≤ L, so I is true.
II – L ≥ T < K, so we know there is no relationship between L and K, so II if false.
III – L ≥ T < K, so we know there is no relationship between L and K, so III if false.
But II and III make either or pair, so answer is – I and either II or III follow.
TYPE 2: Direct Inequalities
In questions where direct inequalities are given in the statement itself, u need not form the relationship between elements like in above example. In these we will make relationship between elements in which conclusion is to be find.
Example Statement: A < P ≤ Q, L > Q < K, P ≥ O 
Conclusions:
       I. K ≥ O               II. L > O
K > Q ≥ P ≥ O, so K > O, so I is false
L > Q ≥ P ≥ O so L > O, so II is true

Comments

Popular From Month

National symbols of India

list of pm with time period

Oaths and Resignations

20 Most Important Question of India GK General Knowledge

List of Former Chairmen of the UPSC

The Hindu Vocabulary For All Competitive Exams | 06-09-2020

Daily CA One Liners , 14 September 2020

Important Concepts and Formulas - Logarithm

Current Affairs 29th March 2017

Important Points about Andhra Pradesh