Q. A is twice as efficient as B and together they complete work in 12 days. A alone will finish in?
✅ Correct Answer: (A)
18 days
Explanation: Let B= x → A=2x → Together: 3x in 12 → work=36x. A=2x → 36x/(2x)=18 days.
Explanation by: Ankit Singh
Let B= x → A=2x → Together: 3x in 12 → work=36x. A=2x → 36x/(2x)=18 days.