Question

doi frati au 45 de lei cati lei are fiecare frate daca unul are de 4 ori mai mult decat celalalt

Answer 1

a+b=45lei.....a=4b=>a+4a=45.....5a=45.....a=9......b=36

Answer 2

a+b=45
a=4b
4b+b=45
5b=45
b=45:5
b=9
a=4x9=36