Răspunsuri

2014-05-23T17:12:19+03:00
X+y+z=240
x+y=240.5/8=150 l
z=240-150=90 l
2 dal=20l
z=20+y
90=20+y
y=70l
x+y=150
x=150-70=80 l
x=80l
y=70 l
z=90 l
2014-05-23T17:15:06+03:00
A + b + c = 240
a + b = 5/8 * 240 = 150
c = b + 20
150  + b + 20 = 240
b = 240 - 150 - 20 = 70
a = 150 - 70 = 80
c = 70 + 20 = 90
Primul butoi contine 80 l, al doilea butoi contine 70 l, iar al treilea contine 90 l.
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