Q: The average age of Raj and his father is 45 years. If the ages of the father and the grandfather of Raj are respectively two and three times that of Raj, then the age of Raj's grandfather is
(a)75 years
(b)90 years
(c)81 years
(d)84 years
Correct Answer: (b)
The correct answer is (c): 81 years. Subject: Quantitative Aptitude & Data Interpretation | Sub-topic: Numerical Ability Note: This answer was determined through AI-based research. Verify against the official answer key when available.