Question

Daca a*(b+c)=6000,a*c=4000,iar b=10,atunci303*a=?

Answer 1

a(b+c)=6000 a*b+a*c=6000 a*b+4000=6000 a*b=2000 a*10=2000 a=200 303*a=303*200 303*a=60600

Answer 2

Eu as rezolva-o asa : 
a x b + a x c = 6000.
Daca a x c = 4000;
6000-4000= 2000. ( produsul numerelor a si b. ) 
a= 2000 : 10 
a= 200.
Iar 303 x 200 = 60'600.