Test
1. 48∙n ko`paytma, biror natural sonning kvadrati bo`lsa, n+13 ning eng kichik qiymatini toping.
A) 15 B) 18 C) 16 D) 17
2. m ning qanday qiymatida ifoda qiymati 35/3 ga
teng bo`ladi. A) 11 B) 8 C) 13 D) 7
ning qiymatini toping. A) 3,64 B) 2,6 C) 2,36 D) 4,36
ning qiymatini toping.
A) 126 B) 146 C) 144 D) 124
5. Birinchi son ikkinchi sondan 12 ga ortiq. Ularning o`rta arifmetigi 49 ga teng bo`lsa, ikkinchi sonni toping.
A) 45 B) 39 C) 46 D) 43
6. -3;6;8 va x sonlarining o`rta arifmetigi y ning 1/3 qismiga teng. Agar 3x-2y=15 bo`lsa, y ning qiymatini toping. A) 18 B) 24 C) 32 D) 28
7. 15∙221∙517 ko`paytma nechta nol bilan tugaydi
A) 19 B) 18 C) 21 D) 22
8. Hisoblang. 70∙10-5+1,8∙10-4
A) 8,8∙10-4 B) 88∙10-6 C) 0,88∙10-1 D) 8,8∙10-3
9. f(2x-3)= bo`lsa, f(f(5)) ning qiymatini toping. A) 5 B) 15 C) 11/7 D) 17/2
10. Agar (0,00016)4∙(1250000)5=2x∙5y tenglikdan x+y
ning qiymatini toping. A) 29 B) 31 C) 13 D) 23
11. Eski traktor maydonni 6 soatda, yangisi esa 4 soatda haydaydi. Shu maydonni 3 ta eski va 2 ta yangi traktor qancha vaqtda haydaydi?
A) 1 soatda B) 1,5 soatda C) 2 soatda D) 2,5 soatda
14. Tenglama ildizini toping
A) 5 B) 4 C) 8 D) 6
18. Hisoblang
A) 1,1 B) 1,(3)
C) 3 D) 0,3
19. Hisoblang
20. 140 sonining natural bo’luvchilari sonini toping.
A) 12 B) 15 C) 14 D) 18
21. EKUB(60;28;70) ning qiymatini toping.
A) 4 B) 10 C) 14 D) 2
22. (2a+b)8 ifoda yoyilmasining 5- hadini koeffisiyentini toping. A) 30 B) 1120 C) 50 D) 70
23. P(x)=x3+5x2+x5+1 ko’phadni x3+2 ga bo’lgandagi qoldiqni toping. A) 3x2+1 B) 3x2 -2 C) 3x2 -1 D) 2x+4
24. a2-b2+ac-bc ifodani ko’paytuvchiga ajrating.
A) (a-b)(a+b) B) (a-b)(a+c)
C) (a-b)(a+b+c) D) (a-b)(a+b-c)
25. 8m275dm2 necha dm2 ga teng.
A) 155 B) 875 C) 600 D) 8075
kasrni qisqartiring.
A) 0,75 B) 3/4a C) 3a/4 D) -3/4
bo’lsa, a ning qiymatini toping.
A) 2 B) 3 C) 2,5 D) 3,5
ifodani soddalashtiring
A) 26n+1 B) 43n C) 43n-1 D) 23n
29. 280 va 256 sonlarning umumiy bo’luvchilar
yig’indisini toping. A) 15 B) 16 C) 20 D) 18
30. Sayyohlar xaritada 14 sm bo’lgan masofani bosib o’tishlari kerak. Xaritaning masshtabi 1:2000000 va sayyohlar mashinasining o’rtacha tezligi 80 km/ soat bo’lsa, ular bu masofani necha soatda bosib o’tadilar.
15. Agar f(x-5)=3x - 2 bo’lsa f(f(1)) ni toping.
A) 61 B) 59 C) 60 D) 53
16. 480 ning natural bo’luvchilari sonini toping. bo’lsa, A) 14 B) 24 C) 48 D) 32 f(g(11)) ning qiymatini toping.
A) 23 B) 89/3 C) 40/3 D) 21
17.
32. 72 km/soat tezlik bilan harakatlanayotgan mashina o’zidan 12 km oldinda 57km/soat tezlik bilan ketayotgan mashinani necha minutda quvib yetadi.
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