" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1+2+3+4......... + 50= (1+50)/2 x 50 = 51 x 25 = 1275
100x + 1275 = 4275
100x = 4275 - 1275
100x = 3000
x = 3000/100= 30