90/x=125/x+70
18/x=25/x+70
25x=18x + 1.260
7x= 1.260
x = 180 murid
180 murid = musik = 90°
180/90= 2 murid
jadi setiap 1° = 2 murid
90+125+70+x=360°
x= 360-285 = 75°
75° = tari + tenis
75° x 2 murid = 150 murid
Jadi, siswa yang menyukai tari dan tenis sebanyak 150 murid. (C)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
90/x=125/x+70
18/x=25/x+70
25x=18x + 1.260
7x= 1.260
x = 180 murid
180 murid = musik = 90°
180/90= 2 murid
jadi setiap 1° = 2 murid
90+125+70+x=360°
x= 360-285 = 75°
75° = tari + tenis
75° x 2 murid = 150 murid
Jadi, siswa yang menyukai tari dan tenis sebanyak 150 murid. (C)