Explicație pas cu pas:
a+b+c = 2420
a:b = 3, a =3×b
c:a= 2, c = 2×a = 2×(3×b) = 6×b
3b + b + 6b = 2420
10b = 2420
b = 2420: 10
b = 242
a = 3×242 = 726
c = 2×726 = 1452
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Explicație pas cu pas:
a+b+c = 2420
a:b = 3, a =3×b
c:a= 2, c = 2×a = 2×(3×b) = 6×b
3b + b + 6b = 2420
10b = 2420
b = 2420: 10
b = 242
a = 3×242 = 726
c = 2×726 = 1452