Jawaban:
72 nilai arif karena dikurangi dengan nilai fani
Penjelasan dengan langkah-langkah:
Nilai rata rata 17 anak
= 17 × 76
= 1.292
Nilai rata rata tanpa arif dan fani
= 15 × 77
= 1.155
Nilai arif dan fani
= 1292 - 1155
= 137
Nilai arif
= 65
Nilai fani
= 72
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Jawaban:
72 nilai arif karena dikurangi dengan nilai fani
Penjelasan dengan langkah-langkah:
Nilai rata rata 17 anak
= 17 × 76
= 1.292
Nilai rata rata tanpa arif dan fani
= 15 × 77
= 1.155
Nilai arif dan fani
= 1292 - 1155
= 137
Nilai arif
= 65
Nilai fani
= 72