If 30 oxen can plough $$\frac{1}{7}$$ th of a field in 2 days, how many days 18 oxen will take to do the remaining work?

If 30 oxen can plough $$\frac{1}{7}$$ th of a field in 2 days, how man

1.	If 30 oxen can plough $$\frac{1}{7}$$ th of a field in 2 days, how many days 18 oxen will take to do the remaining work?
A.	0 days
B.	0 days
C.	5 days
D.	8 days
E.	1 days
Answer» C. 5 days