Blood relation is very important topic for various competitive exams .it is quite easy if you follow the post written below and you need little bit of practice for this.You can use the sign Language to represent the relation.it is up to you . i am taking following one.
+ Male candidate
- Female candidate
--> Couple
------- Same generation i.e.brother –brother (or) sister-sister (or) sister
to brother
_______ Different generations i.e. father-son (or) mother-son (or) father –
daughter (or) Mother - daughter You need to know about different relation before starting to solve the problem.so check the following ......
IMPORTANT RELATIONS :
- Mother’s (or) father’s son - Brother
- Mother’s (or) Father’s Daughter – Sister
- Mother’s brother – Maternal Uncle
- Father’s Brother – Paternal uncle
- Mother’s (or) Father’s sister – Aunt
- Mother’s (or) Father’s father – Grand father
- Mother’s (or) Father’s mother – Grand mother
- Son’s wife – Daughter in law
- Daughter’s husband – Son in law
- Husband’s (or) Wife’s father – Father in law
- Husband’s (or) Wife’s mother – Mother in law
- Husband’s (or) Wife’s brother – Brother in law
- Husband’s (or) Wife’s sister – Sister in law
- Sister’s husband – Brother in law
- Brother’s (or) Sister’s son – Nephew
- Brother’s (or) Sister’s daughter - Niece
TYPE OF PROBLEMS :
1. SINGLE PERSON BLOOD RELATIONS
2. MIXED BLOOD RELATIONS
3. CODED BLOOD RELATIONS
1. SINGLE PERSON BLOOD RELATIONS
These are Relations between two people only.
DIRECT SPBR :
Break the given sentence at is/was/as and resolve it from last point to is/was/as to get easy solution for the problem.
Carefully observe the given examples.
PROBLEM NO -1
Pointing to a lady Ravi said,” She is the only daughter of the father of my sister’s brother”. How is she related to Ravi?
Solution :
Break the given sentence at is.
From the last, in the view of Ravi,
My sister’s brother – brother
Father of brother – father
Daughter of father – sister
So,that becomes “she is my sister”
So, answer is sister.
PROBLEM NO -2
John introduces Mary as the daughter of the only son of my father’s wife. How is Mary related to john?
Solution :
Break the given sentence at as.
Resolving from the last , In the view of john,
My father’s wife – mother
Only son of mother – himself i.e. john
Daughter of john– daughter.
So, answer is daughter.
NOTE : Sometimes they might ask like how is john related to Mary. In that case answer is father. So, don’t make answers without clear understanding in this type of problems.
INDIRECT SPBR :
Break the given sentence at is/was/as.
Resolve the sentence from last upto is/was/as.
And also resolve the sentence from the first upto is /was/as.
Then you will get easy solution. Observe the below examples.
PROBLEM NO -3
Pointing to a man in the photograph, a Woman says,” His mother’s only daughter is my mother”. How is man related to woman?
Solution :
Break the sentence at is.
From the last, up to is : my mother – Woman's mother
From the first, up to is : his mother’s only daughter – his sister
His sister = woman’s mother.
So, the answer is Mother’s brother i.e. Uncle.
If he asks like how is woman related to that man? Then answer is sister’s daughter i.e. niece.
PROBLEM NO -4
Introducing Suresh, Kalpana said," His brother’s father is the only son of my grandfather”. How is Kalpana related to Suresh?
Solution :
Break the sentence at is.
From the last up to is : The only son of my grandfather – father
From the first up to is : his brother’s father – father
Suresh’s father = kalpana’s father
So, they are brother & sister.
Answer is sister.
2. MIXED BLOOD RELATIONS :
In this, mutual blood relations depending on more than two persons mentioned. These type of problems can be solved with the help of diagrams.
Follow these symbols in the diagram to avoid confusion.
+ Male candidate
- Female candidate
--> Couple
------- Same generation i.e.brother –brother (or) sister-sister (or) sister
to brother
_______ Different generations i.e. father-son (or) mother-son (or) father –
daughter (or) Mother - daughter
The following list of generation might be helpful to you.
First generation : Grand father, Grand mother
Second generation : Father, Mother, Uncle, Aunt.
Third generation : Self, Sister, Brother, Sister in law, Brother in law
Fourth generation : Son, Daughter, Nephew, Niece.
Better to use the same generation in one horizontal row in the diagrams.
PROBLEM NO-5
A and B are brothers and C and D are sisters. A’s son is D’s brother. How is B related to C?
Solution:
By using above notations we can draw the below diagram. A,B are taken ‘+’ and C ,D
are taken as ‘-’. It seems that A,B belongs to one generation and C,D belongs to another generation.
So, A,B are taken in one horizontal row and C,D are taken in other horizontal line.
It says that A is C’s father. Father’s brother is uncle. So, answer is uncle.
CODED BLOOD RELATIONS :
In this type, relationships represented by codes and symbols like + , - , / , *. You have to analyze the required relation based on the given code. In this also you may need diagrammatic representation of problem to solve it. Use the same representation used in mixed blood relations.
In the coding equation better to solve the code from last letter.
Ex -7 :
If P+Q means P is husband of Q, P/Q means P is the sister of Q, P*Q means P is the son of Q. how is D related to A in D*B+C/A?
Solution :
C/A – C is sister of Q.
B+C/A – B is brother in law of A (sister’s husband – brother in law.
D*B+C/A – D is nephew of A (sister’s husband’s son means sister’s son i.e. nephew).
So, answer is Nephew.
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