LR - Blood Relation - Previous Year CAT/MBA Questions
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Mr. Raju took the members of his family for a picnic. His father’s mother and mother’s father including their two children were in one car. His father’s son and sister’s husband, brother’s wife were in second car. He along with his wife, wife’s sister, wife’s brother and son’s wife with a kid was in the third car. How many members of Mr. Raju’s family were there in the picnic along with Mr. Raju and how many were left behind (assuming all members of the third generation are married)?
13 and 4
14 and 5
12 and 5
13 and 6
Answer: Option A
It is given that Mr. Raju’s father’s mother, mother’s father and their children were in one car.
∴ His paternal grandmother, maternal grandfather, Mother and Father were in the first car.
Mr. Raju’s father’s son, sister’s husband and brother’s wife were in the second car.
Raju’s father’s son has to be his brother as Raju himself was in the third car.
∴ Raju’s brother, Brother-in-law (sister’s husband) and sister-in-law (brother’s wife) were in the second car.
Mr. Raju, his wife, wife’s sister, wife’s brother, son’s wife with a kid were in the third car.
∴ Mr. Raju, his wife, sister-in-law (wife’s sister), brother-in-law (wife’s brother), son’s wife and grandson were in the third car.
∴ Car 1: Paternal Grandmother, Maternal Grandfather, Mother and Father.
Car 2: Brother, Sister-in-law (brother’s wife) and Brother-in-law (sister’s husband).
Car 3: Raju, his wife, Sister-in-law (wife’s sister), Brother-in-law (wife’s brother), Son’s wife and Grandson.
∴ 13 members of Raju’s family were there in the picnic and 4 members i.e. Raju’s Sister, his wife’s brother-in-law, his wife’s sister-in-law and his son were left behind.
Hence, option 1.
In each question there are two statements: A and B.
Choose 1 if the question can be answered by one of the statements alone but not by the other.
Choose 2 if the question can be answered by using either statement alone.
Choose 3 if the question can be answered by using both the statements together but cannot be answered using either statement alone.
Choose 4 if the question cannot be answered even by using both the statements A and B.
F and M are father and mother of S, respectively. S has four uncles and three aunts. F has two siblings. The siblings of F and M are unmarried. How many brothers does M have?
A. F has two brothers.
B. M has five siblings.
Answer: Option A
F and M have a total of four brothers and three sisters.
Statement A states that F has two brothers, which means M should have two brothers.
∴ Statement A is alone sufficient.
Statement B is redundant as no additional information is provided.
Hence, option 1.
In a family gathering there are two males who are grandfathers and four males who are fathers. In the same gathering there are two females who are grandmothers and four females who are mothers. There is at least one grandson or a granddaughter present in this gathering. There are two husband-wife pairs in this group. These can either be a grandfather and a grandmother, or a father and a mother. The single grandfather (who wife is not present) has two grandsons and a son present. The single grandmother (whose husband is not present) has two granddaughters and a daughter present. A grandfather or a grandmother present with their spouses does not have any grandson or granddaughter present. What is the minimum number of people present in this gathering?
Answer: Option B
Here "-" represents the Husband-Wife pair.
∵ We want the minimum number of people, let us assume that the two grandfathers and two grandmothers have already been counted as fathers and mothers respectively.
∴ We have 4 fathers, 4 mothers, 2 grandsons and 2 granddaughters.
∴ Minimum number of people present = 4 + 4 + 2 + 2 = 12
Hence, option 2.
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