" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
2 polka: x
3 polka: 1/2x
x+15+1/2x=3*x
-1,5x=-15
x=10
1 polka: 10+15=25
2 polka: 10
3 polka: 5