" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x- 15%
15*30 :100=450:100= 4,50zł
30 zł - 4,50 zł= 25,50 zł
Odp. Cena książki po obniżce wynosi 25, 50 zł
x=15%
x=30*15%/100%
x=45/10
30-4,5=35,5