Question

O firma are 120 de angajati. Determinati numarul barbatilor stiind ca nr femeilor reprezinta 20% din nr barbatilor.

Answer 1

f+b=120
f=20b/100
20b/100+b=120
20b+100b=12000
120b=12000
b=100

f+100=120
f=20

Answer 2

NOT X-NR BARBATILOR
        Y-NR FEMEILOR
 X+Y=120
 X=20Y SUPRA 100
20Y + 100Y= 12000
120Y=12000
X=100
Y=20