A can do a task in 4 hours; B and C can complete it in 3 hours; and A and C can complete it in 2 hours. How long will it take B to finish it on his own?
A. 8 hours
B. 10 hours
C. 12 hours
D. 24 hours
Answer:C
A can do a task in 4 hours; B and C can complete it in 3 hours; and A and C can complete it in 2 hours. How long will it take B to finish it on his own?
A. 8 hours B. 10 hours C. 12 hours D. 24 hours