Question

afla a si b daca a-b=90 si a:b=3 rest 20

Answer 1

a-b =90
a/b =3  r 20   ;    a =3b+20

3b+20 - b =90
2b =90-20 =70
b =35
a =3b+20 =3*35 +20 =125
v  ;  125-35 =90