Well let's see ... They both have 28 games played with 10 to go and right now Barca has 2p adventage ... Since they dont meet in the league anymore this season surely team who drops less points will win the title but then again i'd like to see title race still being wide open in last round (although this probably do not happen lol) ...
Anyway remaining games are:
Barca: Leganes (H), Sevilla (A), Athletic Bilbao (H), Celta Vigo (A), Atletico Madrid (H), Villarreal (A), Espanyol (H), Valladolid (A), Osasuna (H), Alaves (A)
Real: Valencia (H), Sociedad (A), Mallorca (H), Espanyol (A), Getafe (H), Athletic Bilbao (A), Alaves (H), Granada (A), Villarreal (H), Leganes (A)
I'd imagine 7-8 wins for either team will be enough though ...