bob mavzudan mavzulargacha testlar

1-bob. 1.1 mavzudan 1.5 mavzulargacha testlar:
1. 3680 va 5060 sonlarini ayni bir songa bo’lganda, birinchisida bo’linma 32 ga teng bolsa, ikkinchisida nechaga teng bo’ladi?
A)44 B)38 C)48 D)52 E)46
2. Agar a toq son bo’lsa, quyidagi sonlardan qaysi biri albatta toq son bo’ladi?
A) a²+ 27 B) 5(a + 13) C) a ⁸ D) a(a+3)/ 2 E) (a+1)(a+2)/2
3. Quyidagi sonlardan qaysi biri 12 ga qoldiqsiz bo’linmaydi?
A) 9216 B) 13626 C)12024 D) 18312 E) 52308
4. 243 ni qandaydir songa bo’lganda bo’linma 15 ga, qoldiq 3 ga teng chiqdi. Bo’luvchi nechaga teng?
A) 17 B) 16 C) 18 D) 19 E) 21
5. n ning qanday eng kichik natural qiymatida 2n + 1 soni 33 ga qoldiqsiz bo’linadi?
A) 7 B) 3 C)6 D) 4 E) 5
6. Agar m ∈ N bo’lsa, quyidagi keltirilganlardan qaysi biri doimo juft bo’ladi?
A) m(m + 6) B) m² + 18m C)( m²−16 )/(m+4 )D) m⁵ + 13m E) m⁴ + 8
7. Qaysi tenglik qoldiqli bo’lishni ifodalaydi?
1) 47 = 4·11+3 2) 47 = 6·6+11 3) 47 = 9·5+2 4) 47 = 7 · 7 – 2
A) 1; 3 B) 1; 2; 3 C) 1; 4 D) 2; 3
8. 594 va 378 ning umumiy bo’luvchilari nechta?
A) 8 B) 7 C) 9 D) 5 E) 6
9. n raqamining qanday qiymatlarida 10+n va 10 sonlarining eng kichik umumiy karralisi 60 bo’ladi?
A) 2 B) 0 C) 5;2 D) 2;0 E) 5
10. 2146, 1991 va 1805 sonlarining har birini qanday natural songa bo’lganda, qoldiqlari bir xil chiqadi?
A) 7 B) 13 C) 21 D) 31 E) 37
11. 3 ∗ 470 yozuvdagi yulduzchani shunday raqam bilan almashtiringki, hosil bo’lgan son 45 ga qoldiqsiz bo’linsin.
A) 4 B) 5 C) 0 D) 6 E) 8
12. Ushbu 11121314...5960 sonning raqamlari yig’indisini toping.
A)380 B)370 C)360 D)400 E)390
13. 48 sonining barcha natural bo’luvchilari yig’indisini toping.
A)123 B)100 C)108 D)124 E)128
14. Quyidagi sonlardan qaysilari 6 ga qoldiqsiz bo’linadi?
x = 123386, y = 402108, z = 2, 61 · 10⁵
A) faqat x B) faqat y C) faqatz D) y va z E) x va z
15. Nechta ikki xonali son 15 ga qoldiqsiz bo’linadi? A) 4 B) 5 C) 7 D) 6 E) 8
16. 8ⁿ⁺² · 12^n-3 ko’paytmaning natural bo’luvchilari soni 42 ga teng bo’lsa, n nechaga teng bo’ladi?
A) 4 B) 3 C) 2 D) 5 E) 6
17. 61971 ning oxirgi raqamini toping.
A) 2 B) 6 C) 8 D) 4 E) 1
18. Hisoblang. – 1/ 4 – 1/ 5
A) – 9/ 20 B) – 2/ 9 C) – 1/ 10 D) 9 /20 E) 2/ 9
19. Kasrning qiymati 40 dan qanchaga kam? (20 − 48)(−5 − 20)/( −5)
A) 160 B) 140 C) 180 D) 200 E) 120
20. Hisoblang.( 3, 21 · 5, 95 − 4, 44)/( 2, 21 · 5, 95 + 1, 51)
A) 1 B) 2 C) 1/ 2 D) 3/ 2 E) 61/186
21. Quyidagi sonlardan qaysi biri 0,(2) ga teng?
A) 1/ 9 B) 4/ 18 C) 2/ 3 D) 0, 22 E) 2/ 10
22. Davri 0 yoki 9 dan farqli bo’lgan cheksiz davriy o’nli kasrlarni ko’rsating
m = 1/ 0,33, n = 247, 123123..., p = 0, 63(8), q = 172/ 99 , l = 17/ 20 .
A) n, p B) m, p, l, C) m, n, p, q D) m, q E) hammasi
23. 0, 5(6) + 0,(8) ni hisoblang.
A) 0, 6(4) B) 1, 3(6) C) 1, 4(5) D) 1, 36 E) 1,(36)
24. Soddalashtiring. 12² − (x + 7)² − (5 − x) · (19 + x)
A)0 B) 50 C) 140 D) 90 E) 85
25. Agar a + a^-1 = 5 bo’lsa, a ³ + a ^-3 ni hisoblang?
A) 110 B) 70 C) 80 D) 90 E) 100
26. Ko’paytuvchilarga ajrating. b ² + ab − 2a ² − b + a
A) (a − b)(2a − b) B) (a + b)(2a − b − 1) C) (a − b)(2a − b − 1) D) (b − 2a)(a − b + 1) E) (b − a)(2a + b − 1)
27. Ko’paytuvchilarga ajrating. 1 − (2x − 3)²
A) 2(x + 2)(x + 1) B) 3(x − 2)(x + 1) C) 4(2 − x)(x − 1) D) 2(1 − x)(x − 2) E) (2 − 3x)(x − 1)
28. Ifoda natural son bo’ladigan n ning barcha natural qiymatlari nechta? (16n² – 128)/ n²
A) 5 B) 3 C) 2 D) 6 E) 7
29. Hisoblang. √ 192 − √ 108 + √ 243/ 3
A) 5√ 3 B) 5√ 2 C) 3√ 5 D) 3√ 3 E) 8√ 3
30. Agar √ 5 = m, √ 7 = n bo’lsa, √ 560 ni m va n orqali ifodalang.
A) 4mn B) 2mn C) 6mn D) 8mn E) 16mn

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1-bob. 1.1 mavzudan 1.5 mavzulargacha testlar:

S	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
J	A	C	B	B	E	D	A	A	A	D	A	A	D	D	D	A	B	A	C	A	B	C	C	A	A	E	C	C	A	A
N