Four years ago , average age of A and B was 18 years . Present average age of…
2024
Four years ago , average age of A and B was 18 years . Present average age of A,B and C is 24 years , then C's age after 8 years will be
- A.
40 years
- B.
36 years
- C.
42 years
- D.
32 years
Attempted by 14 students.
Show answer & explanation
Correct answer: B
Answer: 36 years
Four years ago the average age of A and B was 18, so their total then = 2 × 18 = 36.
Each of A and B is 4 years older now, so their present total = 36 + 2 × 4 = 36 + 8 = 44.
Present total of A, B and C = 3 × 24 = 72, so C's present age = 72 − 44 = 28.
After 8 years C's age = 28 + 8 = 36 years.
Final result: 36 years.