Four persons can compte a job in 8 days. After four days two persons have left the work. How many days should it take for the remaining persons to complete the work?
A
10
B
6
C
4
D
8
Correct Answer: 8
4 persons can complete 1 portion in 8 days so 4 " " " 12 portion in 82 days so 2 persons can complete 12 portion in 8×22 days = 8 days