7-sinflar uchun test

7-sinflar uchun test

# Ifodani soddalashtiring. (4a³b²)³: (2a²b)² =

+A) 16a⁵ b⁴ B) 12a³ b³ C) 16a²b⁴ E) 16a²b³ D) 8a⁵b⁴
# Algebraik ifodaning son qiymatini toping.
A) ; B) ; C) ; +D. ;
# Zavod mashina ishlab chiqarish buyurtmasini 20 kunda bajarishi kerak edi. Lekin zavod har kuni rejalashtirilganidan tashqari 1ta mashina ortiq ishlab chiqarganligi sababli, muddatidan bir kun oldin buyurtmani bajaribgina qolmasdan, balki qoshimcha 4 ta ortiq mashina ishlab chiqargan. Zavod buyurtma bo’yicha nechta mashina ishlab chiqarishi kerak edi?
+A) 300ta; B) 400ta; C) 404ta; D) 304ta;
# Otasi 32 yoshda o’gli esa 6 yoshda. Necha yildan keyin otasi o’g`lidan 3 marta katta bo’ladi?
A) 5 yil; B) 8 yil; +C) 7 yil; D) 6 yil;
# Kasrni qisqartiring :
+A) (4x-10y)/(10x-4y) B) ½ C) -1 D) 10x-4y
# Quyidagi kasrlar uchun umumiy mahrajni toping:
+A) 84x<sup>3</sup>y<sup>2</sup> B)21x<sup>3</sup>y<sup>2</sup> C)42x<sup>3</sup>y<sup>2</sup> D)168x<sup>3</sup>y<sup>2</sup>
# Kasrlarni qo‘shing:
A) +B) C) D)
# Ifodani soddalashtiring va yig‘indini toping:
A) 3m+2n B) 2m+2n C) 2n+m +D) 2m+n
# Kasrlarni ko‘paytiring:
+A) B) C) D)
# Uchburchakning ikki tomoni 0,5 sm va 7,8 bo`lsa uchinchi tomon uzunligi butun son bo`lsa, shu tomon uzunligini toping?
A) 7 B) 9 +C) 8 D) 5
# Teng yonli uchburchakda uchidagi burchagi asosidagi burchakdan 30<sup>0</sup> katta uchburchakning burchaklarini toping?
A)30<sup>0</sup>, 30<sup>0</sup>, 60<sup>0</sup> +B)50<sup>0</sup>, 50<sup>0</sup>, 80<sup>0</sup> C)60<sup>0</sup>,60<sup>0</sup>, 30<sup>0</sup> D) 50<sup>0</sup> 80<sup>0</sup> 80<sup>0</sup>
# Uchburchakning tashqi burchagi 120<sup>0</sup> unga qarshi bo`lmagan, burchaklar o`lchovlari nisbati 5:7 kabi. Uchburchakni burchaklarini toping?
A) 60<sup>0</sup> 40<sup>0</sup> 80<sup>0</sup> B) 50<sup>0</sup> 80<sup>0</sup> 50<sup>0</sup> +C) 50<sup>0</sup> 60<sup>0</sup> 70<sup>0</sup> D)25<sup>0</sup> 50<sup>0</sup> 90<sup>0</sup>
# Qo`shni burchaklardan biri ikkinchisidan 50⁰ kichik katta, burchakni toping?
+A)105⁰ B)70⁰ C) 115⁰ D) 120⁰
# Ikki to`g`ri chiziqning kesishishidan hosil bo`lgan uchta burchak yig`indisi 315⁰ ga teng. Shu burchaklarning kichigini toping?
A)60⁰ B)70⁰ +C)45⁰ D)60⁰
# Uzunligi 400mm bo`lgan aylananing 30% i gradus o`lchovini toping?
+A)108⁰ B) 132⁰ C)111⁰ D)112⁰
# Aylana bir nechta yoyga ajratilgan bo`lib ularga mos markaziy burchaklar 1,2 va 6 sonlariga proporsional. Yoylardan kattasini toping? A)180<sup>0</sup> B) 120<sup>0</sup> C)300<sup>0</sup> +D) 240<sup>0</sup>
# Qo`shni burchalar yig`indisi…
A) Doimo o`tmas +B)yoyiq burchak C)180⁰ D)B,D to`g`ri
# Vertikal burchaklar….
A)Ustma-ust tushadi B)180⁰ li burchak +C)o`zaro teng D) to`g`ri javob yo`q
# 1⁰ li burchak ….
+A)60 minut B)60 sekunt C) 360 soat D) A,B to`g`ri
# Hisoblang.
A) 3,6 +B) 3,75 C) 3,15 D) 3,5
# Hisoblang:
A) +B) 2a C) D) a

# Hisoblang: 49²+51*98+51²=

A) 1000 B) 100000 +C) 10000 D) 10
# bo‘lsa
A)2/5 B)1 C) -5 +D) -2/5
# ni soddalashtiring.
A) +B) C)m+1 D)m-1
# Agar tezlik 25% ga orttirilsa, vaqt necha foizga kamayadi?

А) 25% B) 30% +C) 20% D)15%

# Agar ekanligi ma’lum bo’lsa, ni toping.
+А)
# Hisoblang: .
А) 51 В) 42 С) 1 +D) 46
# Agar va bo‘lsa, m+n nimaga teng?
A) 8 +B) 5 C) 7 D) 6
# Tenglamani yeching: .
+A) 96 2/7 B) 96 3/5 C) 96 3/7 D) 96 2/5
# Hisoblang:
A) 0,3 B) 0,8 +C) 0,6 D) 0,5
# Hisoblang:
A) 1000 +B) 100 C) 10 D) 1
# Uzunligi 30 cm bo‘lgan MN kesmada K nuqta belgilangan. Agar MK va KN kesmalarning uzunliklari 2:3 nisbatda bo‘lsa, MK va KN kesmalar uzunliklarini toping.
+A) 12 va 18 B) 16 va 14 C) 13 va 17 D) 11 va 19
# AB kesmani C va D nuqtalar ketma-ket kelgan AC, CD va DB qismlarga ajratadi. Agar AC kesmaning uzunligi 21 mm, CD kesma AC kesmadan 6 mm uzun, DB kesma esa CD dan 7 mm qisqa bo‘lsa, AB kesmaning uzunligini toping.
A) 58 +B) 68 C) 74 D) 64
# Tenglamani yeching:
A) -6/5 B) -7/8 +C) -7/6 D) -6/4
# Kasrlarni qisqartiring: .
A) x+1/x-1 B) x-2/x+1 +C) x-1/x+1 D) x+2/x-1
# Bo‘lishni bajaring:
+A) B) C) D)
# To‘g‘ri burchak uchta teng bo‘lakka bo’lindi. Chetki burchaklar bissektrisalari orasidagi burchakni toping.
A) 70 +B) 60 C) 50 D) 40

# BCD va AKE uchburchaklar teng АК = 20 sm, , bo‘lsa, BCD uchburchakning mos tomonlari va burchaklarini toping.

+A) BC=20, , B) BC=30, , C) BC=20, , D) BC=40, ,
# Ikki parallel to‘g‘ri chiziq uchinchi to‘g‘ri chiziq bilan kesishdan. Agar ichki bir tomonli burchaklar 7 : 11 kabi nisbatda bo‘lsa, hosil bo‘lgan burchaklarni toping.
A) 60,120 +B) 70,110 C) 80,100 D) 50,130
# a va b parallel to‘g‘ri chiziqlarning c kesuvchi bilan kesishishdan hosil bo‘lgan burchaklardan biri ga teng. Kesishishdan hosil bo‘lgan barcha burchaklarni toping.
A) 70,110,70,110 B) 40,140,40,140 C) 60,120,60,120 +D) 30,150,30,150
# АВС to‘g‘ri burchakli uchburchakning АВ gipotenuzasiga CD balandlik o‘tkazilgan. В burchagi ga, BD kesma 1 sm ga teng. АВ gipotenuzaning uzunligini toping.
A) 3 B) 6 +C) 4 D) 9
# ВОС burchak ga teng. , ОК - ВОС burchakning bissektrisasi. КОМ burchakni toping.
A) 54 B) 84 C) 64 +D) 74
# CDE tengyonli uchburchakning perimetri 26 sm; CE uchburchakning asosi, DB esa bissektrisasi, DBE uchburchakning perimetri 20 sm. DB ni toping.
A) 9 +B) 7 C) 8 D) 6
# P(x)=x³−4x²+6x−2 ko`phadni x+2 ga bo`lgandagi qoldiq nimaga teng?
+A) -38 B) -34 C) -36 D) -32
# Hovuzga ikki jo`mrakdan suv tushadi. Hovuz tubidagi jo`mrak esa hovuzni bo`shatadi. Tubida jo`mrak yopiqligida bo`sh hovuzni I jo`mrak 10 soatda II jo`mrak esa 15 soatda to`ldiradi. Tubidagi jo`mrak esa to`la hovuzni 30 soatda bo`shatadi. Uchala jo`mrak bir vaqtda ochilsa, hovuz necha soatda to`ladi?
A) 6,5 B) 8,5 +C) 7,5 D) 4,5
# Hasan bilan Avazning yoshlari yig`indisi 16 ga teng. Hasan Avazning yoshida bo`lganida, Avazning tug`ilishiga 1 yil bor edi. Avaz necha yoshda?
A) 7 B) 6 +C) 5 D) 4
# Sonning qismi bilan qismi yig`indisi, qismidan bilan qismi ayirmasining 2 martasidan 22 ga ortiq. Bu son nechaga teng?
A) 25 B) 35 C) 40 +D) 60
# 1− tenglamani yeching.
A) B) 2 C) +D)
# 27<sup>4</sup>∙32<sup>3</sup>=6<sup>n</sup>∙x tenglikda n ning eng katta qiymati nechaga teng?
A) 8 B) 10 +C) 12 D) 14
# Agar uch xonali natural sonlar yig`indisi ga teng bo`lsa, ni toping.
A) 8 +B) 7 C) 6 D) 5
# To‘rtta ketma-ket juft natural sonlar berilgan. Chetki sonlar yig‘indisining uchlanganidan o‘rtadagi sonlar musbat ayirmasi ikkilanganining ayirmasi 50 ga teng. Ushbu sonlarni toping.
A) 2,4,6,8 B) 4,6,8,10 +C) 6,8,10,12 D) 8,10,12,14
# ABC uchburchakning AD medianasi BC tomondan keyin DE= AD bo`lgan kesmaga davom ettirilib, E nuqta B nuqta bilan tutashtirildi.Agar ACD=45⁰, ABD=35⁰ bo`lsa, ABE ni toping.
+A) B) C) D)
# Umumiy AB asosga ega bo`lgan ACB va ADB uchburchaklar berilgan.
CD va AB lar O nuqtada kesishadi. Agar DAB= CBA, CAB= DBA,
DB=24 sm bo`lsa, CA ni toping.
A) 12 +B) 24 C) 48 D)72

# Quyidagi chizmada bo`lsa, ning qiymatini toping.

A) 45 B) 75 C) 85 +D) 65
# Ko’phadni ko’paytuvchilarga ajrating:
+A) B) C) D)
# Ko’phadni ko’paytuvchilarga ajrating: 4a(x - y) + 4az + 7b(y - x - z).
+A) (y-x-z)(7b-4a) B) (y-x-z)(7b+4a) C) (y+x+z)(7b-4a) D) (y+x+z)(7b+4a)
# Tenglamani yeching : 3x- 9,2 = 1,3
A) 4,5 B) 2,5 +C) 3,5 D) 1,5
# Maktab oshxonasida oq non, qora non va uch xil kolbasa
bor. Ulardan necha xil buterbrod tayyorlash mumkin?
A) 8 B) 12 +C) 6 D) 4
# Kutubxonachi Sizga 5 ta turli kitobni o‘qishni taklif qildi.
Siz shulardan 3 tasini tanlab olmoqchisiz. Buni necha xil
usulda amalga oshirish mumkin?
A) 8 +B) 10 C) 12 D) 14
# 0, 3, 4, 5, 6, 7 raqamlaridan jami nechta 4 xonali toq
son tuzish mumkin?
A) 1008 B) 18 C) 108 +D) 1080