" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Rata2 = 6,5
((10xn)+(25x6,3)) : 35 = 6,5
10n+157,5 = 6,5 x 35
10n+157,5 = 227,5
10n = 227,5 - 157,5
10n = 70
n = 70:10
n = 7 → nilai rata2 ulangan siswa pria