Teladan Soal Lusin, Kodi, Rim, Dan Gross

Tentunya sebelum kita dapat menjawab dilema-masalah mirip di atas, apalagi dahulu kita mesti mengerti satuan ukuran jumlah yang digunakan untuk menjumlah banyak benda. Berikut ini daftar konversi satuan ukuran jumlah : 1 lusin = 12 buah. 1 gross = 12 lusin. 1 gross = 144 buah = 12 lusin. 1 rim = 500 lembar. 1 kodi = 20 buah. Berdasarkan daftar di atas, kini sudah mengenali : 4 lusin sama dengan berapa ?, 3 lusin ditambah 4 gross , 1 lusin ditambah 2 kodi sama dengan berapa ? dan sebagainya. Nah sekarang yang perlu kita ketahui, penggunaan ukuran jumlah tersebut digunakan dalam hal apa-apa saja dalam kehidupan sehari-hari kita. Berikut teladan pemakaian dari lusin, kodi,rim dan gross:

Lusin umumnya dipakai untuk satuan barang mirip piring dan gelas, sendok dan sebagainya.
Gross biasanya dipakai untuk satuan alat tulis seperti : buku, pensil, dan sebagainya.
Rim sangat sering kita dengar untuk menyatakan satuan lembar kertas.
Kodi lazimnya digunakan untuk satuan kain, baju, dan celana.

Contoh Soal Satuan Jumlah (Lusin, Kodi, Rim, dan Gross) Soal No.1 Hitunglah nilai selesai dari soal berikut :
a. 3 lusin + 2 kodi =…..buah
b. 2 rim + 40 lembar = …..lembar
c. 2 gross + 2 lusin = …..lusin
d. 4 gross + 2 lusin = …..buah
e. 2 lusin + 2 gross + 1 kodi = ……buah Pembahasan Untuk Soal (a) 3 lusin + 2 kodi = .....buah 3 (12) + 2 (20) = 76 buah Untuk Soal (b) 2 rim + 40 lembar = .....lembar 2 (500) + 40 = 1040 lembar Untuk Soal (c) 2 gross + 2 lusin = .....lusin 2 (12) + 2 = 26 lusin Untuk Soal (d) 4 gross + 2 lusin = .....buah 4 (144) + 2 (12) = 600 buah Untuk Soal (e) 2 lusin + 2 gross + 1 kodi = ......buah 2 (12) + 2 (144) + 1 (20) = 332 buah

Soal No.2 Mislakan dalam suatu kotak terdapat 6 gross Pulpen. Maka ada berapa lusin pulpen di dalam kotak tersebut? Pembahasan Diketahui :
1 gross = 12 lusin, maka:
6 gross = 6 x 12 lusin = 84 lusin Soal No.3 Seorang Pedagang Baju memesan 2 kodi celana dan 4 lusin baju ke grosir busana yang ada di tanah kakak. Berapakah jumlah keseluruhan barang yang dibeli oleh penjualtersebut ? Pembahasan Diketahui 1 kodi = 20 buah dan 1 lusin = 12 buah ,maka:
2 kodi celana = 2 x 20 buah = 40 buah celana
4 kodi baju = 4 x 12 = 48 buah baju

Jumlah keseluruhan barang yang dibeli yaitu: 40 + 48 = 88 buah barang

Soal No.4 Untuk menghadapi tahun anutan gres 2018 Ratna akan membeli buku tulis sebanyak dua lusin dan pulpen sebanyak satu lusin. Jika harga setiap buku yakni 3.000 dan harga pensil yakni sepertiga harga buku. Berapa duit yang mesti dikeluarkan oleh Ratna ? Pembahasan Diketahui 1 lusin = 12 buah, maka :
2 lusin buku tulis = 2 x 12 = 24 buah
1 lusin pulpen = 1 x 12 = 12 buah

Harga 1 buku tulis = Rp 3000 maka :
Harga 2 lusin buku tulis = 24 x Rp 3000 = Rp 72000

Harga 1 pulpen = 1/3 Harga Buku = 1/3 x 3000 = Rp 1000
Harga 1 lusin pulpen = 12 x Rp 1000 = Rp 12000

Total Uang yang dikeluarkan : Rp 72000 + Rp 12000 = Rp 84000

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