Răspuns :
1 robinet ........ 25l /min
6 robinete....... x l/min ⇒x=6·25=150 l/min
1 min..............150 l
20 min.............y l⇒y=20·150=3000
6 robinete....... x l/min ⇒x=6·25=150 l/min
1 min..............150 l
20 min.............y l⇒y=20·150=3000
1 min =25 l apa = 1 robinet
20 min = 20x25=>500 l apa
6 robinete = 500x6= 3000 l apa
Bafta ^^
20 min = 20x25=>500 l apa
6 robinete = 500x6= 3000 l apa
Bafta ^^