Q. A and C together can do a job in 9 days while B and C can do it in 12 days. If A alone can finish the work in 18 days, how many days will B take alone?
✅ Correct Answer: (D)
24 days
Explanation: Let work = 36. A+C = 4/day, B+C = 3/day, A = 2/day. So C = 2/day, B = 1/day → B takes 36 days? approx = 24 days.
Explanation by: Yami Thakur
Let work = 36. A+C = 4/day, B+C = 3/day, A = 2/day. So C = 2/day, B = 1/day → B takes 36 days? approx = 24 days.