" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Ok,itu jawabanya dijamin betul 100%................................^_~
124 = 1/2 x (11+20)x t
124x2 = 31 x t
248/31 = t
t = 8