Question

afla A,b si c.Stiind ca a:b=3rest9,a:c=3,a+b+c=62

Answer 1

a:b=3 rest 9
a=3b+9
a:c=3
a=3c
c=a:3
c=(3b+9):3
c=3b:3+9:3
c=b+3
a+b+c=62
3b+9+b+b+3=62
3b+b+b=62-9-3
5b=50
b=50:5
b=10
a=3b+9
a=3×10+9
a=30+9
a=39
c=b+3
c=10+3
c=13