9-sinf matematika fanidan olimpeada testlari O`qituvchi: Botirov H. M

9-sinf matematika fanidan olimpeada testlari

O`qituvchi:Botirov H.M
1.It o`zidan 30 m masofada turgan tulkini quva boshladi.It har sakraganda 2m, tulki esa 1 m masofani o`tadi.Agar it 2 marta sakraganda, tulki 3 marta sakrasa, it qancha masofada tulkini quvib yetadi.

A)120m B)90m C)145m D)115m

2.1,2,3,4,5 raqamlarini o`rin almashtirish orqali nechta besh xonali son hosil qilish mumkin?

A)5 B)25 C)32 D)16

3. to’rt xonali, ikki xonali sonlar, b=2a bo’lsa, abab sonini ab soniga bo’lgandagi bo’linmani toping

A) 101 B) 111 C) 121 D) 122

4.Hisoblang:

........

A) B) C) D)

5. bo`lsa, ifodani qiymatini toping.

A) B) C) D)

6. parabolaning koordinata o`qlari bilan kesishish nuqtalarining koordinatalarini toping.

A)(3;1) B)(1;3) C)(0;4) D)(4;0)

7. Ikki musbat sonning yig`indisi 160 ga teng. Agar shu sonlar kublarining yig`indisi eng kichik bo`lsa, shu sonlarni toiping.

A)(95;65) B)(90;70) C)(75;85) D)(80;80)

8. tengsizlikni yeching.

A) B) C), D.

9. parabola uchining koordinatalarini toping.

A) (;) B)(-;) C)(;-) D)(-;-)

10. Perimetri 28 sm bo`lgan uchburchakning balandligi uni perimetrlari 14 sm va 18 sm bo`lgan ikkita uchburchakka ajratadi.Uchburchak balandligini toping.

A)5sm B)3 sm C)4 sm D) 2 sm

11.Hisoblang:

A)3,4 B)5,76 D)2,4 E)2,6

12. Hisoblang:

A)3,4 B)1,6 C)0,4 D)0,16

13. Hisoblang:

A) B)2 C)4 D) 6

14. tengsizlikni yeching.

A) B)

C)

D)

15. tengsizlikning barcha butun yechimlari yig`indisini toping.

A)10 B)9 C)-9 D)-10

16. tengsizlikning barcha natural yechimlari yig`indisini toping.

A)25 B)28 C)27 D)21

17.ifoda n ning nechta natural qiymatida butun son bo`ladi?

A) 2 B)1 C) 4 D) 3

18. Qavariq 14 burchakning diagonallari soni nechta?

A)75 B)56 C)77 D) 54

₁₉.Funksyaning aniqlanish sohasini toping.

20. Hisoblang:

21. Soddalashtiring :

22. Soddalashtiring:

23.Ko’pburchak kichik burchaklarining va bitta tashqi burchagining yig’indisi 1510⁰ ga teng. Ko’pburchak tomonlari soni nechta?

24. Katetlari 6 dm va 8 dm bo`lgan to`g`ri burchakli uchburchakka ichki chizilgan aylana radiusini toping.

25. To`g`ri to`rtburchakning eni 10% ga, bo`yi esa 30% ga orttirilsa, uning yuzi necha % ga ortadi?