tolong dijawab sama caranya ya pliss

SMK
[tex] \frac{30}{150} \times 100 = 20 \: orang[/tex]
SMA
[tex] \frac{75}{150} \times 100 = 50 \: orang[/tex]

360° - (105°+150°) = 360° - 255° = 105°

SMK : SMA = 2 : 3
SMK = 2/5 x 105° = 42°
SMA = 3/5 x 105° = 63°

banyak siswa SMK = 42°/150° x 100 = 28 orang
banyak siswa SMA = 63°/150° x 100 = 42 orang