" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x+(x+1)+(x+2)+(x+3)+.......+(x+19) =1495 , więc:
20x+190=1495
20x=1305
x=65,25 ,z nie jest to liczba naturalna, więc nie istnieje 20 takich liczb