un sfert de litru = 0,25 l
0,25 l = 250 ml , deci o sticla are 250 ml
250 ml x 900 sticle =225000 ml , deci 900 de sticle contin 225000 ml apa
225000 ml : 300 ml /min =750 min
750 minute = 12 h si 30 min , deci 900 de sticle de apa sunt umplute in 12 ore si 30 min
1 zi = 24 h
1 h= 60 minute ⇒ 1 zi =1440 minute
1440 minute x 300 ml /minut = 432000 ml apa =432 l , deci intr-o zi se imbuteliaza 432 l de apa