In which year was Arjun born? Arjun is presently 25 years younger than his mother. Arjun's brother, who was born in 1964, is 35 years younger than their mother.
Step-by-step Solution:
The key principle here is that the difference in age between people is always constant. We can solve this in two ways.
1. Find the Age Difference Between Arjun and his Brother - Arjun is 25 years younger than their mother.
- His brother is 35 years younger than their mother.
- This means the age difference between the siblings is 35 - 25 = 10 years. Arjun is 10 years older than his brother.
2. Find Arjun's Birth Year - The brother was born in 1964.
- Since Arjun is 10 years older, he must have been born 10 years earlier than his brother.
- Arjun's Birth Year = 1964 - 10 = 1954.
1. Find the Mother's Birth Year - The brother was born in 1964 and is 35 years younger than his mother.
- This means the mother was born 35 years before him: 1964 - 35 = 1929.
2. Find Arjun's Birth Year - Arjun is 25 years younger than his mother.
- This means Arjun was born 25 years after his mother: 1929 + 25 = 1954.
Final Answer: Arjun was born in 1954.