1. oblicz procenty na liczby
22 % kwoty 200 zł
4 % masy 80 dag
25 % doby
20 % z 450 m
70 % kwoty 75 zł
12 % z 20 litrów
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a) 200 zł * 22 %= 200 * 22/100=22 zł
b) 80 zł * 4/100= 16/5= 3 1/5 zł (3,20 zł)
c) 24 h * 25/100=150/25=6
d) 450 * 20/100 = 180/2= 90 m
e) 70/100 * 75 = 210/4= 22 2/4=22,5 zł
f) 12/100 *20/1 = 12/5 = 2 2/5 = 2,4 l