SOAL OSN MATEMATIKA SD
Quiz
•
Mathematics
•
5th Grade
•
Hard
+16
Standards-aligned
Andreyanes Yanuar
Used 4K+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Tiga bilangan berurutan jumlahnya 36. Hasil kali tiga bilangan tersebut adalah ....
1.714
1.715
1.716
1.717
Answer explanation
a+b+c = 36
a + (a+1) + (a+2) = 36
3a + a = 36
3a = 33
a = 11
Sehingga, b = 12 dan c = 13
Jadi, a x b x c = 11 x 12 x 13 = 1.716
Tags
CCSS.6.EE.A.2
CCSS.6.EE.B.5
CCSS.6.EE.B.6
CCSS.6.EE.B.7
2.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Rata-rata pendapatan tiap hari 14 pegawai pabrik di PT Intrafood Rp. 40.000. Karena ada seorang pegawai yang tidak masuk, maka rata-rata pendapatan mereka menjadi Rp. 39.800. Pendapatan pegawai pabrik yang tidak masuk tersebut adalah ....
Rp. 40.300
Rp. 40.600
Rp. 42.300
Rp. 42.600
Answer explanation
Jumlah pendapatan 14 pegawai
= 14 x 40.000 = 560.000
Jumlah pendapatan 13 pegawai
= 13 x 39.800 = 517.400
Jadi, pendapatan pegawai yang tidak masuk tersebut adalah Rp560.000 - Rp517.400 = Rp42.600
Tags
CCSS.6.EE.A.2
CCSS.6.EE.B.5
CCSS.6.EE.B.6
CCSS.6.EE.B.7
3.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Alif dan Aris berada di kota Blora. Keduanya akan pergi ke kota A. Alif berangkat pukul 08.00 menggunakan kendaraan dengan kecepatan 45 km/jam. Kemudian, Bekti berangkat pada pukul 09.00 menggunakan motor dengan kecepatan 50 km/jam. Maka, Bekti menyusul Arif pada pukul ....
17.00
18.00
19.00
20.00
Answer explanation
Pukul 09.00 = Alif 45 km, Bekti berangkat
Pukul 10.00 = Alif 90 km, Bekti 50 km
Pukul 11.00 = Alif 135 km, Bekti 100 km
Pukul 12.00 = Alif 180 km, Bekti 150 km
Pukul 18.00 = Alif 450 km, Bekti 450 km
Jadi, pada jam 18.00 Bekti dapat menyusul Arif
Tags
CCSS.6.EE.B.6
CCSS.6.EE.B.7
CCSS.6.EE.C.9
CCSS.6.RP.A.1
CCSS.6.RP.A.2
CCSS.6.RP.A.3
4.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Sebuah wadah kosong beratnya 5,34 kg. Ketika 70% wadah tersebut diisi air, beratnya menjadi 7,29 kg. Berat wadah tersebut jika 65% berisi air adalah ....
7,16 kg
7,26 kg
7,36 kg
7,46 kg
Answer explanation
Berat air = 7,29 - 5,34 = 1,95 kg Penambahan 70% = 1,95 kg Penambahan 10% = 1,95 kg : 7 = 0,28 kg
Penambahan 65% = 0,28 x 6,5 = 1,87 kg
Jadi, 5,34 + 1,82 = 7,16 kg
Tags
CCSS.6.EE.B.6
CCSS.6.EE.B.7
CCSS.6.EE.C.9
CCSS.6.NS.B.3
5.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Sebidang tanah berbentuk persegi panjang dengan ukuran 9 m x 7,2 m. Bidang tanah tersebut akan dipasangi ubin berbentuk persegi dengan ukuran sisi 30 cm. Banyak ubin yang diperlukan adalah ....
620 buah
720 buah
820 buah
920 buah
Answer explanation
Luas tanah = 9 x 7,2 = 64,8 m² = 648.000 cm²
Luas ubin = 30 x 30 = 900 cm ² Banyaknya ubin 648.000/900 = 720 buah
Jadi, banyaknya ubin untuk menutup tanah adalah 720 buah
Tags
CCSS.6.G.A.1
6.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Jika 2B37 + A62C = 8465, maka nilai A + B + C adalah ....
11
21
31
41
Answer explanation
7 + C = 15 alias C = 8
B + 6 = 14 alias B = 8
2 + A + 1 = 8 alias A = 5
Jadi, A + B + C = 21
Tags
CCSS.6.EE.A.2
CCSS.6.EE.B.5
CCSS.6.EE.B.6
7.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Jika 2a + b = 13 dan a + 2b = 11, maka hasil dari (a+b) adalah ....
8
18
28
38
Answer explanation
Dengan menambahkan dua persamaan tersebut akan memberikan
2a + b = 13
a + 2b = 11
-------------- +
3a + 3b = 24
-------------- :3
a + b = 8
Jadi, hasil dari a + b = 8
Tags
CCSS.6.EE.A.2
CCSS.6.EE.B.5
CCSS.6.EE.B.6
CCSS.6.EE.B.7
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