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maap bila jawabnnya salah
dan terima kasih
hari selasa = 40 orang
hari kamis = 30 orang
hari jum'at = 20 orang
rata-rata pengunjung selama 5 hari yaitu 41
ditanya : banyaknya pengunjung hari rabu?
jawab :
rata-rata = (senin + selasa + rabu +kamis + jum'at) / 5 hari
41 = (45 + 40 + x + 30 + 20) / 5
41 = (135 + x) / 5
41 × 5 = 135+ x
205 = 135 + x
x = 205-135 = 70 (D.)