1cena za buty wynosi 160zł obnizka wynosi 120zł Ile procent wynosi obnizka
2 oblicz 10% liczby 120 i 25% cena programó komputerowego równe 200zł
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120/160=12/16=6/8=750/1000 =75%
120-100% 1,2=1% 12=10%
200-100% 20-10% 10-5% 20+20+10=50
(120:160)x100%=75 %
200*25%=50
120*10%=12