Question

afla a , b si c daca :

a+b+c=905 b:a=3 rest 3 c:b=20 rest 10

Answer 1

b=3a+3
c=20b+10
c=20(3a+3)+10
c=60a+60+10
c=60@+70
a+3@+3+60a+70=905
64a+73=905
64@=832
a=13
b=13*3+3
b=39+3
b=42
c=905-42-13
c=850