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9-sinf Informatika olimpiada

InfoMaster

May 31, 2022

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Tomonidan yaratilgan InfoMaster

9-sinf Informatika olimpiada

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1. from math import *
a=16 s=sqrt(a)*pow(2,2)
print(s) dastur natijasini toping

A) 13

B) 14

C) 15

D) 16

2 / 21

2. radians(x) funksiyaning vazifasini toping

A) gradusdan radianga o‘tkazadi

B) x ning tangensini hisoblaydi

C) radiandan gradusga o‘tkazadi

D) x ning arkkosinusini hisoblaydi

3 / 21

3. from math import *
s=sqrt(36/49)-pow(5/7,2)
print(s) dastur natijasini toping

A) 26/49

B) 17/49

C) 34/49

D) 24/49

4 / 21

4. from math import *
a=225 s=sqrt(a)-pow(15 , 2)
print(s) dastur natijasini toping

A) 200

B) 110

C) -210

D) -100

5 / 21

5. atan(x) funksiyaning vazifasini toping

A) x ning arksinusini hisoblaydi

B) x ning arkkosinusini hisoblaydi

C) x ning tangensini hisoblaydi

D) x ning arktangensini hisoblaydi

6 / 21

6. Pythonda takrorlanishlar soni nomaʼlum bo‘lganda qo'llaniladigan operator qaysi?

A) for

B) while

C) repeat

D) while..do

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7. Signalni analog ko‘rinishdan raqamli ko‘rinishga o‘tkazuvchi qurilma ……{1}……, raqamlik o‘rinishdan analog ko‘rinishga o‘tkazuvchi qurilma ……{2}…. deb ataladi.

A) To'g'ri javob yo'q

B) 1) Demoduliyator 2) o'tkazuvchan

C) 1) Chastotali 2) Moduliyator

D) 1) Demoduliyator 2) Moduliyator

8 / 21

8. C˄˥A˅B mantiqiy ifodaga teng kuchli ifodani toping.

A) ˥(C˅A)˅˥B

B) ˥(˥C˅A)˅B

C) ˥C˅A˅B

D) ˥(C˅A)˅B

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9. Quyidagi mantiqiy ifodaga teng kuchli ifodani toping. ˥A˄˥(B˅˥C)

A) A˅(B˅˥C)

B) A˄˥B

C) ˥A˄˥B˄C

D) ˥A˄˥(B˄C)

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10. MS Excel. Al=8, A2=- 7, B1=-19, B2=13, Cl=Informatika, C2=Universitet, Dl=ABS($Al+Bl)+ ДЛСТР (Cl) berilgan. Agar D1 katakni D2 katakka nusxalansa, D1 va D2 kataklarida hosil bo’ladigan sonlar yig‘indisini toping.

A) 49

B) 35

C) 55

D) 39

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11. Quyidagi sonlar ayirmasining o‘nlik sanoq sistemasidagi ikkilanganini hisoblang. Natijani to`rtlik sanoq sistemasida tasvirlang?

$F7D_{16} va 6204_{8}$

A) 113302

B) 130001

C) 23321

D) 761

12 / 21

12. Beshlik sanoq sistemasida 0 dan 24 gacha bo‘lgan butun sonlar ketma-ket yozilsa, qatorda nechta son bo‘ladi?

A) 18

B) 25

C) 15

D) 12

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13. O’nlik asosga ega sanoq tizimida 274 soni 1AA shaklida yoziladi. Ushbu asosni 4 lik sanoq sistemasida ko‘rsating?

A) 110

B) 12

C) 100

D) 30

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14. MS Excel. A1=57, Bl=114, Cl=4, A2=228, B2=285, C2=Avtomexanik berilgan bo‘lsa, =ПСТР(С2;5+СЧЁТЕСЛИ(А1:B2; ”>56”);C1) formula qiymatini toping.

A) anik

B) exanik

C) mex

D) Avtom

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15. Elektron pochta foydalanuvchilarining elektron manzillari umumiy holda qanday ko‘rinishda bo‘ladi.

A) @login_mail.ru

B) @mail.ru login

C) login@mail.ru

D) loginmail@ru

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16. Ikkilik yozuvida 6 ta nol qatnashgan eng katta to‘rt xonali 16 lik sonni ko‘rsating?

A) FFC0

B) FFFF

C) 81FF

D) FF00

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17. 516 va 457 sonlar yig‘indisidan 366 sonini ayirmasi hisoblanganda, 607soni hosil bo‘ldi. Yig‘indi qaysi sanoq sistemasida bajarilgan?

A) 12

B) 8

C) 10

D) 9

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18. Bir sanoq sistemasida o‘nlik sanoq sistemasidagi 144 soni 100 kabi yoziladi. Sanoq sistemasi asosini aniqlang.

A) 12

B) 11

C) 15

D) 13

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19. MS Excel. A1=–3, B1=7, B2=2 bo‘lsin. Quyidagi formula natijasi –15 bo‘lishi uchun A2 katakka kiritish zarur bo‘lgan qiymatni aniqlang:

=ЕСЛИ(ИЛИ(A1+B2>=A2*B1;A1*B1>0);A1*B2–B1–A2;A1*B1+B2+A2)

A) 2

B) 4

C) 6

D) 1

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20. F(n) funksiyasi qiymatini hisoblash algoritmi quyidagicha berilgan:
n ≤2 da F(n) = 3; n> 2 da F(n) = 5 ∙ F(n−1) –4 ∙ F(n−2), buyerda n – natural son. F(15) ning qiymatini aniqlang.

A) 3

B) 2

C) 5

D) 4

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21. Uchburchak katetlaridan biri 36 ga (7 lik s.s), ikkinchisi esa 2A ga (13 lik s.s) teng. Uchburchakning gipotenuzasini 9 lik sanoq sistemasida toping.

A) 52

B) 48

C) 53

D) 50