Notam cele trei numere cu a, b si c
Ma = ( a + b + c) /3 = 2, 71
a + b + c = 3 x 2,71 = 8,13
Ma = ( a + b ) /2 = 2,87
a + b = 2 x 2,87= 5,74
a + b + c = 8,13
5,74 + c = 8,13
c = 8,13 - 5,74
c = 2,39 → al treilea numar
c = b - 1,17
b = c + 1,17 = 2,39 + 1,17 = 3,56 → al doilea numar
a + b = 5,74
a + 3,56 = 5,74
a = 5,74 - 3, 56
a = 2,18 → primul numar
Verific:
Ma =( 2,18 + 3,56 + 2,39) : 3 = 8,13 : 3= 2,71
Raspuns: 2,18, 3,56, 2,39
