45liter/menit=....liter/detik

45 liter = 45 liter
45 menit = 2.700 detik
45 liter/menit = 45 : 2.700 = 0,017 liter/detik

45 liter/menit itu =
1 menit = 60 dtk

jadi 45/liter = 45/60 dtk = 45 : 60 = 0.75 liter /detik