1.

Q: A and B can do a work in 12 days, B and C in 15 days, C and A in 20 days. If A, B and C work together, they will complete the work in

A. 5 days
B. $$ 7{5\over6}$$
C. 10 days
D. $$ 15{2\over3}$$
Answer» D. $$ 15{2\over3}$$


Discussion

No Comment Found