A is 5 years older than B who is thrice as old as C. If the total of ages of…
2024
A is 5 years older than B who is thrice as old as C. If the total of ages of A, B and C is 40, then how old is C ?
- A.
6
- B.
7
- C.
5
- D.
8
Attempted by 68 students.
Show answer & explanation
Correct answer: C
Answer: 5
Explanation:
Let C's age be x years.
Then B = 3x years and A = 3x + 5 years.
Use the total: x + 3x + (3x + 5) = 40.
Simplify: 7x + 5 = 40 → 7x = 35 → x = 5.
Therefore, C is 5 years old.