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?