Question

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

Answer 1

a+b+c=298
a:b=5r16=>a=5b+16=>a=5(7c+4)+16=>a=35c+36
b:c=7r4=>b=7c+4
35c+36+7c+4+c=298
43c=298-40
c=258:43
c=6
a=35x6+36=246
b=7x6+4=46