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a+b+c=298 ,aflati numurele stiind ca a:b=5 rest16 b:c=7 rest 4

Răspuns :

a+b+c=298
a:b=5 rest 16  a=5b+16
b:c=7 rest 4    b=7c+4    c=(b-4)/7
5b+16+b+(b-4)/7=298
6b+(b-4)/7=282
42b+b-4=1974
43b=1978
b=46
a=5*46+16=246
c=(46-4)/7=6

a=246
b=46
c=6