One mole of nitrogen and one mole of neon are combined in a closed container at STP

One mole of nitrogen and one mole of neon are combined in a closed container at STP.
How big is the container?

V = __________ L.

Answer:

At STP 1 mole of Ne and N2 take 22.4 L respectively.
Since they do not react,

V = 44.8 L