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B was born when A was 4 years 7 months old and C was born when B was 3 years 4 months old. When C was 5 years 2 months old, then their average age was :
- A. 8 years 9 months
- B. 7 years 3 months
- C. 8 years 7 months
- D. 8 years 11 months
Answer: Option D
Here is complete explanation of B was born when A was 4 years 7 months old….
