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Latihan OSN 2023

Authored by Yuni Rahayu

others

5th Grade

Used 1+ times

Latihan OSN 2023
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15 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

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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