For baby school you have to pay 500 Qr per month / no and admission time 2000-3000. one time expance for admission. for Car you have to pay approx to 1000 qr per permonth . Other food expances depends on you but normally for one family with two baby 2500 is suficiaents for daily indian food with all kitchen expances.
in summary monthly 5000 qr is sufficients.
Thanks