Jangan Lupa Pakai Caranya
Diketahui :
Voli = 15%
Basket = 20%
Bulu tangkis = 30%
Maka,
Sepak bola = 100% – (15% + 20% + 30%)
= 100% – 65%
= 35%
Jumlah siswa = 16 : 20%
= 16 : 20/100
= 16 x 100/20
= 80
Jadi, jumlah siswa gemar sepak bola = 35% x 80
= 28 orang
X = seluruh siswa
basket = 20/100 x X = 16 orang
2X/10 = 16 orang
X/5 = 16 orang
X = 16 x 5
= 80 orang
%sepakbola = 100% – (basket + voli + bulu tangkis)%
= 100% – (20 + 15+ 30)%
= 100% – 65%
= 35%
sepakbola = 35/100 x 80 orang
= 280/10
= 28 orang (A)