" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
n+ 20%n=n+0,2n=1,2n
liczba o 30% mniejsza od n:
n-30%n = n-0,3n=0,7n
n - 30%* n
* oznacza razy