A 50 b 100 c 98 d 24 a=4b va c+12b=0 bo’lsa, ni toping

1-variant
1.

A)50 B)100 C)98 D)24

2. a=4b va c+12b=0 bo’lsa, ni toping.
A) B) C) −4 D) 3
3. Ikki to’g’ri chiziq kesishishidan hosil bo’lgan burchaklarning biri ga teng. Qolgan burchaklarni toping.
A) B) C) D)
4. tenglamalar sistemasini yeching.
A) (-3; 2) B) (-3; -2) C) D) (-3; -2) ,(3; -2)
5. 11300 ning 36% i va 9000 ning 28% i yig’indisi shu sonlar yig’indisining 40% idan qanchaga kam?
A) 1432 B) 1532 C) 1528 D) 1632
6. Barcha uch xonali sonlar ichida 44 ga qoldiqsiz bo’inadiganlari nechta?
A) 20 B) 19 C) 21 D) 22
7. Agar kvadratning perimetri 20% ga kamaytirilsa, uning yuzi necha foizga kamayadi?
A) 40 B) 20 C) 19 D) 36
8. Quyidagi nuqtalarning qaysi biri funksiyaning grafigiga tegishli?
A) (2; 5) B) (−1; 1) C) (1; −1) D) (−5; 2)
9. a(b−c) −b(c−a) −c(a−b) ni soddalashtiring.
A) 2ab−2ac B) −2ac C) 2ab−2bc D) 0
10. Birinchi kuni ish normasining qismi bajarildi. Ikkinchi kuni birinchi kunda bajarilgan ishning qismicha ko’p ish bajarildi. Shu ikki kunda qancha ish normasi bajarildi?
A) B) C) D
11. Agar toping.
A) B) −4,5 C) 1 D) 4,5
12. kasrni qisqartiring.
A) C)
13. Sonning 8 foizi 40 foizining necha foizini tashkil qiladi?
A) 20 B) 15 C) 25 D) 5
14. , , ... ketma- ketlikda ixtiyoriy uchta ketma-ket hadining yig'indisi 40 ga teng. Agar ketma-ketlikning uchinchi hadi 7 ga teng bo'lsa, birinchi va sakkizinchi hadlarining yig'indisi nechaga teng?
A) 7 B) 14 C) 33 D) 34
15. ning qiymatini toping. A) B) C) D) 0,04

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
B	B	C	C	B	A	D	A	A	C	C	B	A	C	B

2-variant
1. ni hisoblang. A) -3 B) 3 C) -2,5 D) 2,5
2. ni soddalashtiring. A) B) C) D)
3. x ning y ga nisbati 9:7 kabi, y ning z ga nisbati 14:15 kabi z ning necha foizini x tashkil etadi.
A) 140 B) 120 C) 160 D) 80
4. tenglamalar sistemasini yeching.
A) (-2; 2) B) (-2; -2) C) D) (-2; 2) (-2; -2)
5. Ikki qo’shni burchakning ayirmasi ga teng. Shu burchaklardan kichigini toping.
A) B) C) D)
6. Umumiy daftarning bahosi oldin 15% ga, keyin 139 so’m arzonlashgach, 150 so’m bo’ldi. Daftarning dastlabki bahosi necha so’m bo’lgan.
A) 500 B) 400 C) 340 D) 350
7. a=4b va c+12b=0 bo’lsa, ni toping. A) B) C) -4 D) 3
8. ni hisoblang.
A) −2,45 B) 0,64 C) 0,43 D) 3,95
9. Hakat boshlangandan 0,6 soat o’tgach, mototsikilchi velosapetchini quvib yetdi. Mototsikilchining tezligi 42, velosapetchiniki 12 km/soat bo’lsa, harakat boshlanishidan oldin ular orasidagi masofa qancha (km) bo’lgan?
A) 18 B) 24 C) 16 D) 27
10. ni hisoblang.
A) 340 B) 540 C) 1340 D) 660
11. ni hisoblang.
A) B) C) D) 2
12. kasrni qisqartiring
A) B) C) D)
13. ni toping.
A) −3 B) 9 C) −5 D) 15
14. Uchta sonning o’rta arifmetigi 13,9 ga teng. Agar sonlarning ikktasi 20,2 va 21,7 bo’lsa, uchinchi sonni toping.
A) −0,2 B) 12,1 C) 13 D) −8,4
15. Quyidagi ko’pyoqlardan qaysi birida 5 ta yoq, 9 ta qirra bor?
1 2 3
A) 1, 2 B) 1 C) 3 D) 2, 3

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
A	C	B	A	C	C	B	B	A	D	D	D	B	A	B