Question

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

Answer 1

a:b=3rest9 .....b=(a-9):3
a:c=3.................c=a:3
a+b+c=62

a+(a-9):3+a:3=62 /×3
3a+a-9+a=189
5a=186+9
5a=195
a=195:5
a=39

a:c=3
39:c=3
c=39:3
c=13

a+b+c=62
39+b+14=62
53+b=62
b=62-53
b=9