A completes $$ \frac{1}{8} $$ part of a given work in 8 days while B completes $$\frac{2}{5}$$ part of the same work in 16 days. If A and B work together, then what will be the number of days taken by them to finish the work?

A

$$\frac{325}{12}$$

B

25

C

$$ \frac{320}{13}$$

D

32