Twelve men can complete a work in 8 days. Three days after they started the work, 3 more men joined them. In how many days will all of them together complete remaining work?
A. 2
B. 4
C. 5
D. 6
Answer:B
Twelve men can complete a work in 8 days. Three days after they started the work, 3 more men joined them. In how many days will all of them together complete remaining work?
A. 2 B. 4 C. 5 D. 6