Pointing to a girl, Mr. Suraj said “She is the only daughter of my fat...
Solution:
Given, Prakash, Qureshi, Rajesh and Shabdesh live together in a house. Let's find the number of people who live together in the house.
Prakash lives with his (or her) parents.
- As Prakash lives with his parents, the minimum number of people in the house is 2.
Qureshi lives with at least 3 persons younger than him (or her).
- As Qureshi lives with at least 3 persons younger than him, the minimum age of Qureshi is 4.
- Therefore, the minimum number of people in the house is 5 (Qureshi and 4 people younger than him).
Shabdeesh lives with his mother and is older than at least 2 persons living with him.
- As Shabdeesh is older than at least 2 persons living with him, the minimum age of Shabdeesh is 3.
- Therefore, the minimum number of people in the house is 6 (Shabdeesh, his mother and 4 people younger than him).
Rajesh lives with his (or her) son and is not older than Shabdeesh.
- As Rajesh is not older than Shabdeesh, the minimum age of Rajesh is 3.
- Therefore, the minimum number of people in the house is 7 (Rajesh, his son, Shabdeesh, his mother and 3 people younger than Qureshi).
Thus, the minimum number of people in the house is 7 which contradicts the given answer. Therefore, the given information is inconsistent.
Hence, the answer is "Data insufficient" or "Inconsistent information".
Pointing to a girl, Mr. Suraj said “She is the only daughter of my fat...
Solution:
Given that Prakash, Qureshi, Rajesh and Shabdesh live together in a house satisfying certain conditions.
Let's try to understand each condition and deduce the total number of people in the house.
Condition 1: Prakash lives with his (or her) parents.
- As per this condition, Prakash is living with at least 2 people (himself/herself and parents).
- Therefore, the minimum number of people in the house is 3.
Condition 2: Qureshi lives with at least 3 persons younger than him (or her).
- Qureshi is the eldest among the people living with him/her.
- As per this condition, Qureshi is living with at least 3 people younger than him/her.
- Therefore, the minimum number of people in the house is 4.
Condition 3: Shabdeesh lives with his mother and is older than at least 2 persons living with him.
- Shabdeesh is living with his mother, which makes it a total of 2 people in the house.
- Shabdeesh is older than at least 2 people living with him, which means there are at least 2 people younger than him.
- Therefore, the minimum number of people in the house is 4.
Condition 4: Rajesh lives with his (or her) son and is not older than Shabdeesh.
- Rajesh is living with his son, which makes it a total of 2 people in the house.
- Rajesh is not older than Shabdeesh, which means Shabdeesh is the eldest among the people living in the house.
- Therefore, the minimum number of people in the house is 4.
Combining all the conditions, we can see that the minimum number of people in the house is 4. Hence, the correct option is (a) 4.