afla nr de forma ab stiind ca a:2=b:4

Răspuns :

a;2=b:4
sau
a/2= b /4⇒2b=4a⇒b=2a
ab→nr natural de 2 cifre⇒ a≠0
daca a=1⇒b=2;⇒ab=12
daca a=2⇒b=4⇒ab=24
daca a=3⇒ b=6⇒ab=36
daca a=4⇒b=8⇒ab=48
a≠5, deoarece b=10