pake cara y teman teman....

Semoga membantuu... :)

Padang = 25% ( sudutnya 90° = 90/360 × 100% = 25%

Yogyakarta = 100% - ( 20%+15%+25%) = 40%

Yogyakarta = 300/25 × 40%
= 12.000/25
= 480 orang ( A )

Semoga bermanfaat (≧∇≦)/（・∀・）（＾ｖ＾）