A pole has been painted in 3 colours. $$\frac{1}{4}$$ part of it has been painted in black colour, $$\frac{2}{5}$$ part has been painted in red colour and the remaining has been painted in green colour. Find the part painted with green colour.

A

$$\frac{2}{3}$$

B

$$\frac{7}{20}$$

C

$$\frac{7}{9}$$

D

$$\frac{9}{10}$$