Correct option is D
Given:
- Total men = 13
- Average age = 55 years
- 2 men leave → new average becomes 56 years
- Find the average age of the 2 men who left
Solution:
- Total age of 13 men = 13 × 55 = 715 years
- After 2 men leave, remaining 11 men's total age = 11 × 56 = 616 years
- Age of the 2 men who left = 715 − 616 = 99 years
- Average age of the 2 men = 99 / 2 = 49.5 years
Final Answer: (D) 49.5 years