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Verified answer
Mapel : MatematikaBab : Perbandingan
Diketahui :
- Pak Andi = 13 jam
- Pak Budi = 7 jam
Ditanya :
- Waktu yang diperlukan jika mereka mengecat bersama - sama = .......?
Penyelesaian :
(13 × 7)/(13 + 7)
= 91/20
= 4 11/20 jam
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