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Verified answer
Bab Bilangan BulatMatematika SMP Kelas VII
benar = 4
salah = -1
tidak dijawab = 0
jumlah soal benar = 50 - 5 - 10 = 35 soal
a]
skor = (benar x 4) + (salah x (-1)) + (tidak dijawab x 0)
skor = (35 x 4) + (10 x (-1)) + (5 x 0)
skor = 140 - 10 + 0
skor = 130
b]
jika benar semua = 50 x 5 = 250
persentase skor = (130/250) x 100%
persentase skor = (4 x 13) %
persentase skor = 52%