Question

daca 20%×x=30%×y si x+y=200 atunci cat e x si cat e y

Answer 1

20%×x=30%×y
 x+y=200
x/5=3y/10    x=15y/10
15y/10+y=200
15y+10y=2000
25y=2000
y=80
x=200-80=120