Half of a doctor’s life was over before he got his degree. After that he spent 1/3rd of his life working for a big hospital. Then he started his private practice and spent 1/10th of his life doing this. However, he had to retire at this point because of health issues, and died 4 years later? How old was he when he retired?
Answers
Answer:
60 year because average retirement of a government official is 60 year
Solution :-
Let us assume that, the doctor died at the age of x years .
so,
→ Doctor's life = x years .
now,
→ He got his degree after = (x/2) years
→ Spent working for a big hospital = (x/3) years .
→ Spent working in his private practice = (x/10) years .
→ Died later = 4 years after retire .
A/q,
→ (x/2) + (x/3) + (x/10) = x - 4
→ (15x + 10x + 3x)/30 = x - 4
→ (28x/30) = x - 4
→ x - (14x/15) = 4
→ (15x - 14x)/15 = 4
→ (x/15) = 4
→ x = 60 years .
therefore,
→ Age of doctor when he retired = 60 - 4 = 56 years (Ans.)
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