Răspuns:
B=250lei+A
[tex] \frac{2}{5} \times b = \frac{4}{9} \times a[/tex]
[tex] \frac{2}{5} \: {250lei + a} = \frac{4}{9} \times a[/tex]
[500 lei+2a]/2=4A/9
4A×2=9[500lei+2a]
8a=4500lei+2a
8A-2A=4500lei
A=750 la Andrei
B=>250+750
B=>1000 lei (La Bogdan)
A+B=>750+1000=>1750(au primit amandoi)