" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
A. 12,5%
B. nieco mniej niż 20%
C. 50%
D. około 30%
E. 25%
K-kwota
2K=k(1+p)⁴ /:K
(1+p)⁴=2 /⁴√
1+p=⁴√2
p=⁴√2-1
p=1,19-1
p=0,19
p=ok19%, czyli tu chyba B