
Ekstra Olim Mat 10 Sept 21
Presentation
•
Mathematics
•
7th - 9th Grade
•
Hard
Alexsius Riyanto
Used 2+ times
FREE Resource
1 Slide • 4 Questions
1
by Alexsius Riyanto
2
Multiple Choice
Adam dapat menggali lubang dalam 2 jam. Mikail dapat menggali
lubang yang sama dengan adam selama 3 jam. Berapa waktu yang
diperlukan untuk menggali lubang yang sama jika mereka bekerja
bersama?
1 jam 12 menit
2 jam 30 menit
1 jam
50 menit
3
Multiple Choice
Jika suatu pekerjaan dapat dikerjakan dengan mesin A, B, atau C saja, maka pekerjaan tersebut akan selesai berturut-turut dalam waktu 30 menit, 36 menit, atau 45 menit. Jika ketiga mesin tersebut digunakan bersama-sama selama 6 menit, maka bagian dari pekerjaan tersebut yang akan selesai sebesar ..... bagian
2
21
41
1
4
Multiple Choice
Perhatikan barisan bilangan berikut.
1, 2, 4, 8, 15, 26, ?, ?, ?, …
Tiga bilangan selanjutnya berturut-turut adalah….
37,49,71
37,61,99
42,58,74
42,64,93
5
Multiple Choice
Tiga buah persegi masing-masing panjang sisinya 6 cm, 10 cm, dan 8 cm disusun seperti gambar berikut ini.
Luas daerah yang diarsir adalah ... cm2
224
138
78
72
by Alexsius Riyanto
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