Jawaban:
78 pupils
Penjelasan dengan langkah-langkah:
5C = 5B - 2 → 5B = 5C + 2
5A = 5C + 3
5A + 5B + 5C = 119
(5C + 3) + (5C +2) + 5C = 119
3. 5C + 5 = 119
5 C = (119-5)/3
5C = 38 pupils
5B = 5C + 2 = 40 pupils
so 5B + 5 C = 40+ 38 = 78 pupils
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Jawaban:
78 pupils
Penjelasan dengan langkah-langkah:
5C = 5B - 2 → 5B = 5C + 2
5A = 5C + 3
5A + 5B + 5C = 119
(5C + 3) + (5C +2) + 5C = 119
3. 5C + 5 = 119
5 C = (119-5)/3
5C = 38 pupils
5B = 5C + 2 = 40 pupils
so 5B + 5 C = 40+ 38 = 78 pupils