Q. A works 3 times faster than B. If together they complete a work in 12 days, how long will B alone take?
✅ Correct Answer: (D)
48 days
Explanation: A = 3x, B = x → together = 4x = 1/12 → x = 1/48 → B takes 48 days.
Explanation by: Kartik Sharma
A = 3x, B = x → together = 4x = 1/12 → x = 1/48 → B takes 48 days.