Candidates can discover various tips and strategies below to efficiently solve questions in the Blood Relation reasoning section.
Example 1: Introducing a lady at the party, Goldy told her friend, “She is sisterinlaw of my only brother who is father of Ganesh who is grandson of Navya’s husband who is my father who has only two child.” How is Ganesh related to that lady?
Sol: If we analyze all the statements given above in the question and draw the family tree for the same By this, we can easily see that Ganesh is nephew of the Lady.
Example 2: Given Directions
M@N means M is the wife of N
M#N means M is the son of N
M5N means M is the sister of N
M$N means M is the father of N
Which of the following expressions shows I as the brother of H?
(a) H#P$I,
(b) H%P$I,
(c) I%H$P,
(d) H%I$P
Sol: Option D is correct.
Explanation:The above statements implies the following things.
M isFrom the above options, we need to find an expression which represents I as the brother of H.
So, check all the options and eliminate those in which either the gender is of I is unknown, or I is female.
In the above question, @ and % represents wife and sister respectively such as female so eliminate all such options. And if in any expression, I is present in the end then it means that the gender of I will be unknown so eliminate such options too.
From the above trick we can eliminate options 1,2, and 3. Hence in the expression “H%I$P”, I is the brother of H.
Example 3: Read the following instructions:
Which of the following means that C is the son of M?
Sol: In these types of questions, we have to analyze each option
In Option A,
According to this option NxC indicates N is the father of c. Hence it is wrong.
In Option B,
According to this option C is the brother of N who is the father of M. Hence it is wrong.
In Option C ,
According to this option Fx C indicates F is the father of C. Hence it is wrong.
In Option D,
According to this option M is the father of N who is the sister of C hence C and N are siblings and C is the brother of F so, C is male, Hence C is the son of M.Hence, Option D is the correct answer.
Example 4: Read the following information carefully and answer the questions which follow:
Mr. Rajat Chopra and his wife Nikita Chopra have 3 sons whose names are Ramesh, Suresh and Umesh. Mishra family is a neighbor of the Chopra's.
Mr. Amit Mishra and his wife Neha Mishra have 2 daughters whose names are Payal and Ruchi. The two neighboring families go to Kerala for a vacation. They decide to go for boating but no boat could carry more than 3 members. So they hire 3 boats. None of the children know how to row a boat, so at least one of the adults have to be there on each boat. Moreover, no boat has all the three members from the same family.
Q1: If Neha and Ruchi are on the same boat, which of the following could be a list of people on another boat?
a) Ramesh, Amit, Payal
b) Ramesh, Suresh, Amit
c) Ramesh, Payal, Suresh
d) Amit, Payal, Nikita
Sol: Option 'B' is correct.
We know that none of the boats have all the members from the same family. So each boat must have at least 1 member from each of the two families.
Neha and Ruchi are on the same boat. So only two people from Mishra family are remaining.
Both of them need to be on different boats.
Hence options A and D can be ruled out because they have Payal and Amit on the same boat.
Option C is also not possible since it does not have any adult on the boat
Q 2: If Rajat and Amit are in the same boat and each of the three brothers are on different boats, then which of the following is necessarily true?
a) Every boat has both males and females on it.
b) One of the boats has only females on it.
c) One of the boats has only males on it.
d) The two sisters are on the same boat.
Sol: Option C is Correct.
If Rajat and Amit are on the same boat then the other two boats would be rowed by Neha and Nikita.
It is known that each of the brothers are on different boats. So one of them will be on Rajat and Amit's boat.
Hence there will be one boat with only males.
Q 3: If the three children from the Chopra family ride in different boats then which of the following is definitely false?
I. Rajat and Nikita are rowing in the same boat.
II Amit and Neha are rowing in the same boat.
a. I only
b. II only
c. Both I and II
d. Neither I nor II
Sol: Option 'A' is correct.
The three boys are rowing in different boats. We know that there are only three boats and each boat can carry three persons.
Hence Amit and Nikita cannot be on the same boat as that would mean that one of the boats has all the members from the Chopra family.
So I is definitely false.
Statement II can be true as well false. It can be true if the two people travel in one boat while Amit and Nikita row the other two boats. Hence nothing can be said with certainty about statement II.
Q4: If Nikita and Amit are on the same boat then which of the following cannot be the combination of people on any boat?
a) Ramesh, Neha, Ruchi
b) Neha, Ramesh, Suresh
c) Neha, Ruchi, Umesh
d) Neha, Suresh, Rajat
Sol: Option 'D' is the answer.
Neha, Suresh and Rajat cannot be on the same boat. This is because we know that one of the adults have to be there on each boat. Since Nikita and Amit are already on the same boat, Neha and Rajat have to on the other two boats. If they are on the same boat then there will be no adult on the third boat. Hence, option D is the combination that is not possible.
88 videos119 docs91 tests

1. What are the common types of blood relation questions asked in CAT exams? 
2. How can I improve my skills in solving blood relation problems for the CAT exam? 
3. Are there any shortcuts or tricks to solve blood relation questions efficiently? 
4. How much time should I allocate for blood relation questions in the CAT exam? 
5. Can you provide an example of a typical blood relation question that may appear in the CAT exam? 
88 videos119 docs91 tests


Explore Courses for CAT exam
