Test B: Matematika

11. Yuzi 3,6π bo’lgan doira radiusi qancha?
A) 0,5dm B) 0,6dm C) 2,5 dm D) 10 dm
12. Tomonlari butun sonlarda metr bilan ifodalanadigan va yuzi ga teng bo’lgan to’g’ri to’rtburchaklar soni nechta?
A) 4ta B) 3ta C) 2ta D) 1ta

13. Proporsiyaning noma`lum hadini toping: ²⁸ _ ⁷
x 4
A) 12 B) 16 C) D)
14. Agar Jasurbekning puliga shu pulning 80 % i qo’shilsa, uning pullari 9000 so’m bo’ladi. Jasurbekda qancha pul bor?
A) 5000 B) 7850 C) 3258 D) 9000
15. O’xshash hadlarni ixchamlang: x - 2y - 3x + 5y
A) 4x-7y B) 4x+7y C) 3y+2x D) 3y-2x
16. Toq son formulasi:
A) 2n+1 B) 2n C) 2n+2 D)
17. Al-Xorazmiyning tenglamani yechishdagi val-muqobala usulining mohiyati - …

1. 
   manfiy hadlarni tenglamaning ikkinchi qismiga musbat qilib o’tkazish
   
2. 
   tenglamaning ikkala qismidan teng hadlarni tashlab yuborish
   
3. 
   manfiy hadlarni tashlab yuborish
   
4. 
   tenglama ildizlari o’rta arifmetigini toppish
   

18. 35 ta natural son ketma-ket yozilgan: 123...3435. Shu sonni 25 ga bo'lgandagi qoldiqni toping.
A) 25 B) 5 C) 15 D) 10
19. a=3; b=2; c=-5 bo’lsa, K=abc ifoda son qiymatini toping:
A) 30 B) -30 C) 40 D) -7
20. Teng yonli uchburchak perimetri P ga, asosining uzunligi a ga teng. Uchburchak yon tomoni uzunligini topish uchun ifoda tuzing:
A) 2a-P B) 2P-a C) P-a D) P-2a
21. 10×a< 50 tengsizlikning qanoatlantiruvchi a ning natural sonlar ichidan eng kattasi qaysi?
A) 1 B) 11 C) 4 D) 99
22. 40 dan 100 gacha barcha natural sonlarni yozganda bu yozuvda 7 raqami necha marta uchraydi?
A) 16 B) 20 C) 19 D) 10