Lol sorry my bad

I mean:
You have 3 wallets each with 5GB, then you get 5*0.1 + 5*0.1 + 5*0.1 = 1.5GB
You have 1 wallet with 15GB then you get 15*0.1 = 1.5 GB
So it is the same.
Sheesh... We are debating the associative property of multiplication here.
Bottom line - it doesn't matter how your coins are split in your wallet.