Răspunsuri

2014-04-04T20:25:14+03:00
Femei-20/100*b
Barbati-b
20/100*b+b=120
1.2b=120
b=100 barbati
femei:120-100=20
raspuns:20-f,100-b
2014-04-04T20:25:25+03:00
F+m=120 
f=20% din m
f=20/100*m
f=m/5
m/5+m=120 aducem la acelasi numitor
m+5m=600
6m=600
m=100
f=20