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Tudor2001
a fost răspuns

Prin 3 robinete curg in 4 ore 10800 litri de apa. Cati litri de apa curg prin 5 robinete (de acelasi tip cu primele)  in 3 ore ? 

Răspuns :

SKAWP
1) 10800/4=2700
2700/3=900 litri curg intr-un robinet intro ora
2)5*900=4500
4500*3=13500 litri de apa prin 5 robinete in 3 ore
R/s 13500 litri de apa
Miky93
3r.........4h.........10800l
3r..........3h............x

x=3*10800/4

x=3*2700

x=8100l

3r.........3h............8100l
5r.........3h................y

y=5*8100/3

y=5*2700

y=13500l