Aritmetika Sosial
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Medium
Sarma Manurung
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7 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Clara membeli pensil seharga Rp. 28.800/lusin. Kemudian, pensil tersebut dijual seharga Rp. 3.000/buah. Berapakah keuntungan Clara jika ia berhasil menjual seluruh pensil?
Rp. 600
Rp. 2.400
Rp. 3.600
Rp. 7.200
Answer explanation
Harga beli 1 lusin = Rp. 28.800
Harga jual 1 lusin = Rp. 12 x 3.000 = Rp. 36.000
Sehingga untung = 36.000 - 28.800 = Rp. 7.200
2.
MULTIPLE CHOICE QUESTION
10 mins • 20 pts
Leon membeli sepatu seharga Rp. 1.500.000. Apabila Leon ingin memperoleh keuntungan 25%, pada harga berapakah ia harus menjualnya?
Rp. 1.750.000
Rp. 1.825.000
Rp. 1.875.000
Rp. 1.950.000
Answer explanation
Harga beli = HB = Rp. 1.500.000
Untung = 25% x HB = 25% x 1.500.000 = Rp. 375.000.
Harga jual = HJ = 1.500.000 + 375.000 = Rp. 1.875.000
3.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Pada sebuah drum minyak goreng, tertera bruto 52 kg dan tara 3%. Pernyataan yang benar adalah ...
Tara 1,56 kg
Neto 50,54 kg
Tara 1,58 kg
Neto 50, 64 kg
Answer explanation
Tara = 3% x bruto = 3% x 52 kg = 1,56 kg
4.
MULTIPLE CHOICE QUESTION
10 mins • 15 pts
Harga sebuah baju setelah diskon 5% menjadi Rp. 47.500. Harga baju sebelum diskon adalah ...
Rp. 47.500
Rp. 50.000
Rp. 52.500
Rp. 55.000
Answer explanation
Persentase pembayaran = 100% - 5% = 95% harga awal
Nominal pembayaran = Harga awal x 95%
47.500 = harga awal x 95%
Harga awal = 47.500 : 95%
5.
MULTIPLE CHOICE QUESTION
10 mins • 15 pts
Pada sebuah bank, uang deposito senilai Rp. 1.000.000 dengan suku bunga 3% per bulan. Bunga dalam tiga bulan adalah ...
Rp. 120.000
Rp. 105.000
Rp. 90.000
Rp. 75.000
Answer explanation
Bunga per bulan = 3% x 1.000.000 = Rp.30.000
Bunga untuk 3 bulan = 3 x Rp. 30.000 = Rp. 90.000
6.
MULTIPLE CHOICE QUESTION
10 mins • 15 pts
Seorang pedagang membeli 5 peti telur dengan harga Rp. 1.800.000. Setiap peti memiliki bruto 25 kg dan tara 4%. Agar pedagang memperoleh untung 20%, harga jual tiap kilogram telur adalah ....
Rp. 15.000
Rp. 16.000
Rp. 18.000
Rp. 21.000
Answer explanation
Harga beli 5 peti = Rp. 1.800.000
Keuntungan 5 peti = 20% x 1.800.000 = Rp. 360.000
Sehingga harga jual seluruh telur = Rp. 1.800.000 + 360.000 = Rp. 2.160.000
Tara = 4% x 25 kg x 5 peti = 5 kg
Neto (telur yang bisa dijual) = 125 - 5 = 120 kg
Harga tiap kilogram telur = 2.160.000 : 120 = Rp. 18.000
7.
MULTIPLE CHOICE QUESTION
10 mins • 15 pts
Michael membeli sepeda bekas dengan harga Rp. 6.000.000. Sepeda tersebut diperbaiki dengan biaya Rp. 2.000.000, kemudian dijual seharga Rp. 10.000.000. Besar persentase keuntungannya adalah ….
20%
25%
33%
40%
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