A takes twice as much time as B and thrice as much time as C to finalise a task. Working together, they can complete the task in 8 days. The time (in days) taken by A, B and C, respectively, to complete the task is:

Answer: Option D

Efficiency of A : B : C = 1 : 2 : 3
Total work = 8 × (A + B + C) = 48
Time taken by A → $$\frac{48}{1}$$ = 48 days
Time taken by B → $$\frac{48}{2}$$ = 24 days
Time taken by C → $$\frac{48}{3}$$ = 16 days