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salah = 6 soal
tdjk djwab = 25 - (17+6) = 25 - 23 = 2 soal
maka, nilai yg diperoleh :
(17x4) + (6x(-1)) + (2x0)
= 68 - 6 + 0
= 62
salah = -1
tdk dijwb = 0
soal keseluruhan = 25
dengan dijawab :
benar sbnyak 17 soal
salah 6 soal
sisa 2 soal tdk dijawab
maka :
(17x4)+{6x(-1)}+0 = 68+(-6)=62