POMUŻCIE PLOSIE :3 "Kopa to 60 sztuk,a mendel to 15 szt.Kopa jest większa od mendla" : a) 4% b)400% c)300% d)40%
60-100%
15-x
60x=1500
x=25
25-100%
100-x
25x=10000
x=400
60/15 * 100 % = 40 %
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60-100%
15-x
60x=1500
x=25
25-100%
100-x
25x=10000
x=400
60/15 * 100 % = 40 %