QuizSolver
  • Bank PO
  • CBSE
  • IIT JEE
 
 

Basic Theory for BLOOD RELATIONS for Bank PO and SSC Exams

Posted on - 05-05-2017

Reasoning Bloor Relations

Bank PO

There are two types of questions based on blood relations that are given in different competitive examinations. For the sake of convenience we will refer to the two types of questions as Type I and Type II. (Please note that the questions on blood relationships are not categorised as above in the actual exam papers. It is being done purely from the point of better understanding).

In the exams, the success of a candidate in the questions on blood relations depends upon his knowledge about various blood relations. Some of the relationships given below help in solving the problems.

The easiest and non – confusing way to solve these types of problems would be to draw a family tree diagram and increase the levels in the hierarchy as shown below :

1st stage :

GRANDPARENTS

(Grandfather, Grandmother, Granduncle, Grandaunt)

2nd stage

PARENTS & IN – LAWS

(Father, Mother, Uncle, Aunt, Father-in- law, Mother-in- law)

3rd stage :

SIBLINGS, SPOUSE & IN – LAWS

(Brother, Sister, Cousin, Wife, Husband, Brother-in- law, Sister-in- law)

4th stage :

CHILDREN & IN – LAWS

(Son, Daughter, Niece, Nephew, Son-in- law,

Daughter-in- law)

5th stage :

GRANDCHILDREN

(Grandson, Granddaughter)

Mother's or Father's son : Brother

Mother's or Father's daughter : Sister

Mother's or Father's brother : Uncle

Mother's or Father's sister : Aunt

Mother's or Father's mother : Grandmother

Mother's or Father's father : Grandfather

Grandmother's brother : Granduncle

Grandmother's sister : Grandaunt

Grandfather's brother : Granduncle

Grandfather's sister : Grandaunt

Sister's or Brother's son : Nephew

Sister's or Brother's daughter : Niece

Uncle's or Aunt's son or daughter : Cousin

Son's wife : Daughter-in- law

Daughter's husband : Son-in- law

Husband's or Wife's sister : Sister-in- law

Husband's or Wife's brother : Brother-in- law

Sister's husband : Brother-in- law

Brother's wife : Sister-in- law

Children of same parents : Siblings (could be all brothers,

all sisters or some brothers and

some sisters) Children : Son, Daughter

Children's Children : Grandchildren (Grandson,

Granddaughter)

In addition, remember the word spouse which means either husband or wife.

Grandfather and grandmother will come in the first stage; mother, father, uncle and aunt will come in the second stage; sister, brother and cousin will come at the third stage; son, daughter, niece and nephew will come in the fourth stage and finally, granddaughters and grandsons will come. The above stages are made from the point of view of an individual.

In Type – I questions, the relationship between two people is given through a roundabout way of relating them through other people. We have to go through the series of relationships and finally determine the relationship between the two people given in the question. The relationship can be given as a simple statement or as a statement made by a person. In the first example given below, a person is involved in making a statement whereas in the second question, there is no person involved in making a statement.

Worked out examples :

Example 1.   

A's father's mother-in- law's only daughter's son is B.

How is A related to B?

(a) Brother

(b) Sister

(c) Nephew

(d) Cannot be determined

Solution.

A's father's mother-in- law's only daughter is A's mother.

A's mother's son is A's brother.

But A can be either brother or sister to B. .

Choice (d)

Example 2.   

If A's father is B, C is the father of B and D is A's mother, then How is C related to D?

(a) Father

(b) Grandfather

(c) Father-in- law

(d) Uncle

Solution.

A's father is B and mother is D. Therefore D is B's wife and C is the father of B. Hence C is D's father-in- law.

Choice (c)

Example 3.   

A + B means A is the son of B.

A – B means A is the daughter of B. .

A X B means A is the father of B.

A ÷ B means A is the mother of B.

If M x N + O – P + Q, then how is M related to Q?

(a) Husband

(b) Cousin

(c) Brother-in- law

(d) Uncle

Solution.    

M x N + O – P ÷ Q means M is the father of N, N is the son of O, O is the daughter of P, P is the

mother of Q. .

M is the father of N and N is the son of O means M is the husband of O.

O is the daughter of P and P is the mother of Q means O is the sister of Q.

M is the husband of O and O is the sister of Q means M is the brother-in- law of Q.

Choice (c)

Example 4.   

A + B means A is the son of B.

A – B means A is the daughter of B.

A x B means A is the father of B.

A ÷ B means A is the mother of B.

Which of the following means S is the son-in- law of P?

(a) P + Q ÷ R × S – T

(b) PxQh – R – S + T

(c) P+QxR – S÷T

(d) PxQ – R÷SxT

Solution.

P + Q ÷ R x S – T means P is the son of Q. Q is the mother of R, R is the father of S and S is the daughter of T. Hence S is the neice of P.

P x Q ÷ R – S +T means P is the father of Q, Q is the mother of R, R is the daughter of S and S is the son of T. Hence S is the son-in- law of P.

P + Q x R – S÷T means P is the son of Q, Q is the father of R, R is the daughter of S and S is the mother of T. Hence S is the mother of P.

P × Q – R ÷ S × T means P is the father of Q, Q is the daughter of R, R is the mother of S and S is the father of T. Hence S is the son of P.

Choice (b)

Example 5.   

Pointing to a person, Raju said, "He is the only brother of my father's mother's daughter." How is the person related to Raju?.

(a) Brother

(b) Father

(c) Uncle

(d) Nephew

Solution.    

Raju's father's mother's daughter is Raju's father's sister. Raju's father's sister's only brother is Raju's father. Hence the person is Raju's father.

Choice (b)

Example 6.   

A's mother's father is the husband of B's mother. How is A related to B, if both A and B are males. .

(a) Uncle

(b) Father

(c) Nephew

(d) Son

Solution.    

A's mother's father is the husband of B's mother. That means A's mother is the sister of B. Hence A is the nephew of B. .

Choice (c)

 
Practice Questions 3 on EQUATIONS for Bank PO And SSC
Practice Questions 2 on EQUATIONS for Bank PO And SSC
Basics of VARIATION for Banking and SSC
Basics of RATIO for Banking and SSC
Some important Question on PERCENTAGE for upcoming Bank Exams
Practice Questions on Equations for upcoming Bank PO and SSC
Basics of Equations in One Two and Three Variables for Bank PO and SSC
How To Solve Blood Relation Questions Easily for Bank PO and SSC Exams
How To Solve Profit and Loss Questions for Bank PO and SSC Exams
How to Solve Time and Work Questions for the Upcoming Bank PO and SSC Exams
Tips and Tricks for PARTNERSHIP for Bank PO and SSC
Miscellaneous Series
Squares and Cubes Series
Number Analogies for Bank PO and SSC
Type of Series - Product Series
Type of Series - Difference Series
About Number and Letter Series for Banking and SSC Exams
Letter Series Type 2 for Banking and SSC
Basics of PROPORTION for Bank PO
Basics of PERCENTAGE for Bank PO and SSC

Comments