A can do a task in 24 hours, B in 9 hours, and C in 12 hours. B and C begin employment, but must depart after three days. A completed the remaining tasks in:
A. Five days
B. six days
C. ten days
D. 10 1/2 days
Answer:C
A can do a task in 24 hours, B in 9 hours, and C in 12 hours. B and C begin employment, but must depart after three days. A completed the remaining tasks in:
A. Five days B. six days C. ten days D. 10 1/2 days