" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
3x - duża fontanna
3x+x=100
4x=100/:4
x=25
3x=3*25=75
75-25=50
Duża fontanna pobiera o 50l więcej wody na minute niż mała fontanna