a/b=3/5
a+b=100 a=100-b
(100-b)/b=3/5, inmultim relaria cu 5b si obtinem"
5(100-b)=3b, 500-5b=3b, 8b=500, b=500/8, b=125/2
a=100-125/2, a=(200-125)/2, a=75/2
Ce inseamna mg si ma?
Media aeritmetica = 100/2=50
Media geometrica = radical din (75x125/4) = 25/2 x radical din 15