Răspunsuri

2014-09-26T18:28:32+03:00
Intr o ora = 20 ori 60 =1200l
intr o zi:20 ori 1440=28800l
in 30 zile:20 43200=864000
13 4 13
2014-09-26T18:33:35+03:00
Pe ora 120; intr-o zi 2880;intr-o luna:86400. Fa cu regula de trei simpla si atunci va fi asa: Ca sa afli intr-o ora:
20l...........1min
x..............60 min
------------------------
x=20*60=120.
 Ca sa afli intr-o zi
120l...........1h
x................24h
------------------------
x=120*24=2880
Ca sa afli intr-o luna:
2880................1 z
x.........................30z
---------------------------------
x=2880*30=86400. 
5 4 5