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96+(-6)+(-3)
87
banak soal = 30
dijawab = 27
benar = 24
salah = 27 - 24 = 3
tidak dijawab = 30 - 27 = 3
maka
Total = 24 · B + 3 · S + 3· TJ
= 24(4) + 3(-2) + 3(-1)
= 96 - 6 - 3
= 87
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