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Answer (3)
If it doubles in coverage every day, and it is completely covered in 40 days, then it was half covered on the 39th day.
The field is half covered on Day 39, just one day before it becomes fully covered on Day 40. This is due to the fact that the field doubles in size every day. Therefore, if the field is fully covered on Day 40, it must be half covered on Day 39.
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Jawaban:Ringkasan masalah:Andi meminjam uang Rp 20.000.000 di bank dengan sistem anuitas 1% per tahun selama 5 bulan. Hitung angsuran setiap bulan secara berurutan. Penyelesaian: 1. Hitung suku bunga bulanan:- Suku bunga tahunan = 1%- Suku bunga bulanan = 1% / 12 = 0.0833% (kira-kira) atau 0.000833 dalam desimal2. Hitung anuitas bulanan:- Rumus anuitas: A = P [i(1+i)^n] / [(1+i)^n - 1]- A = Anuitas bulanan- P = Jumlah pinjaman awal (Rp 20.000.000)- i = Suku bunga bulanan (0.000833)- n = Jumlah bulan (5)- A = 20.000.000 [0.000833(1+0.000833)^5] / [(1+0.000833)^5 - 1]- A = 20.000.000 [0.000833(1.000833)^5] / [(1.000833)^5 - 1]- A = 20.000.000 [0.000833(1.00417)] / [1.00417 - 1]- A = 20.000.000 [0.000836] / [0.00417]- A = 20.000.000 [0.200479616307]- A = Rp 4.009.592,333. Perhitungan angsuran setiap bulan:- Bulan 1:- Sisa Pinjaman Awal: Rp 20.000.000- Bunga: 0.000833 * 20.000.000 = Rp 16,660- Angsuran Pokok: Rp 4.009.592,33 - Rp 16,660 = Rp 4.009.575,67- Sisa Pinjaman Akhir: Rp 20.000.000 - Rp 4.009.575,67 = Rp 15.990.407,67- Bulan 2:- Sisa Pinjaman Awal: Rp 15.990.407,67- Bunga: 0.000833 * 15.990.407,67 = Rp 13,322- Angsuran Pokok: Rp 4.009.592,33 - Rp 13,322 = Rp 4.009.579,01- Sisa Pinjaman Akhir: Rp 15.990.407,67 - Rp 4.009.579,01 = Rp 11.980,828,66- Bulan 3:- Sisa Pinjaman Awal: Rp 11.980,828,66- Bunga: 0.000833 * 11.980,828,66 = Rp 9,981- Angsuran Pokok: Rp 4.009.592,33 - Rp 9,981 = Rp 4.009.582,35- Sisa Pinjaman Akhir: Rp 11.980,828,66 - Rp 4.009.582,35 = Rp 7.971.246,31- Bulan 4:- Sisa Pinjaman Awal: Rp 7.971.246,31- Bunga: 0.000833 * 7.971.246,31 = Rp 6,641- Angsuran Pokok: Rp 4.009.592,33 - Rp 6,641 = Rp 4.009.585,69- Sisa Pinjaman Akhir: Rp 7.971.246,31 - Rp 4.009.585,69 = Rp 3.961.660,62- Bulan 5:- Sisa Pinjaman Awal: Rp 3.961.660,62- Bunga: 0.000833 * 3.961.660,62 = Rp 3,300- Angsuran Pokok: Rp 4.009.592,33 - Rp 3,300 = Rp 4.009.589,03- Sisa Pinjaman Akhir: Rp 3.961.660,62 - Rp 4.009.589,03 = -Rp 47.928,41 note:Karena pembulatan, mungkin ada selisih kecil pada sisa pinjaman akhir di bulan terakhir.Perhitungan ini memberikan gambaran umum, perhitungan yang lebih tepat mungkin diperlukan untuk skenario dunia nyata.
