Jawaban:
1. (9 - 8 + 7) - (10 + 3 + 8)
= (9 - 1) - 21
= 8 - 21 = - 13
2. Jawab benar 3 poin, salah -2, tidak jawab 0
Ada 40 soal
Jawaban salah = 40 - 20 - 5 = 15
Poin benar = 20 x 3 = 60
Poin salah = 15 x (-2) = -30
Total poin = 60 - 30 = 30
3. Total = 40 buah
Widela = 30% × 40 = 12 buah
Sisa diberikan kepada Geisha = 40 - 12 = 28 buah
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Verified answer
Jawaban:
1. (9 - 8 + 7) - (10 + 3 + 8)
= (9 - 1) - 21
= 8 - 21 = - 13
2. Jawab benar 3 poin, salah -2, tidak jawab 0
Ada 40 soal
Jawaban salah = 40 - 20 - 5 = 15
Poin benar = 20 x 3 = 60
Poin salah = 15 x (-2) = -30
Total poin = 60 - 30 = 30
3. Total = 40 buah
Widela = 30% × 40 = 12 buah
Sisa diberikan kepada Geisha = 40 - 12 = 28 buah