December 2018 1 31 Report
1. 16 orang dpt mnyelesaikan pkerjaan dlm 40 hari. jika ada 20 org sbelum pkerjaan dimulai, brapa hari pkerjaan ini selesai?

2. di suatu asrama trsedia 90 kg beras yg ckup dikonsumsi 100 org slama 4 hari. jika asrama itu berkurang 20 org, ckup brapa harikah berapa tsb?

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