Question

doi frati au 45 lei. cati lei are fiecare feate, daca unul are de 4 ori mai mult decat celalant?

Answer 1

a+b=45, a=4b, 4b+b=45, 5b=45, b=9, a=45-9=36

Answer 2

a+b=45 lei
a=4b
4b+b=45
5b=45
b=9
a=4*9
a=36