Latihan OSN 2023
Authored by Yuni Rahayu
others
5th Grade
Used 1+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Bilangan yang tepat mengisi titik-titik adalah....
1/2, 2/4, 4/6
1/5, 2/6, 4/7
1/5, 2/5, 4/5
1/3, 2/3, 4/3
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Bilangan yang terletak di sebelah kiri bilangan 5/6 adalah....
4/6
5/5
6/7
7/6
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
1. 3, 9, 18, ..., n
Suku k3-n dari bilangan diatas atas adalah....
36
72
144
288
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
(1/2 - 1/3) x 60% + 0,5 x 1,1 = ....
0,55
0,65
0,75
0,85
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Find the largest n such that
1 + 3 + 5 + .... + n < 300
1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25 + 27
1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25 + 27 + 29
1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25 + 27 + 29 + 31
1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25 + 27 + 29 + 31 + 33
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Bilangan polindrom adalah bilangan yang sama jika dibaca dari depan ke belakang dan dari belakang ke depan, misalnya 111, 121, 131, dll. Berapa banyak bilangan Polindrom 3 angka yang dapat disusun dari bilangan 1, 2, 3, 4, 5 ?
22
23
24
25
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Selisih bilangan berikut adalah....
234, 245, 256, 268
9
10
11
12
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