The average age of 30 men is 25 years. 5 new men of an average age of 30 years joined them. Find the average age of all the men put together.

A

$$28\frac{5}{7}$$ years

B

$$25\frac{5}{7}$$ years

C

$$27\frac{5}{7}$$ years

D

$$26\frac{5}{7}$$ years