" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
6 = 15 (1-r)
2 = 5-5r
5r = 3
r = 3/5
15 = 6/1-r
r = 15/6
r= 2,5
klo gasalah