minta tolong jawaban ini

yang 35 persen salah tuh 35:5 = 7
100:5 = 20
80:5 = 16 , 100:5 = 20
30:5 = 6 , 100:5 = 20
40:5 = 8 , 100:5 = 20
12:4 = 3 , 100:4 = 25
28:4 = 7 , 100:4 = 25
60:5 = 12 , 100:5 = 20
18:2 = 9 , 100:2 = 50