Quyidagi sonlarning nechtasi o’nli kasr bo’la oladi?;;; 31,12

Matematika

1. 
   Quyidagi sonlarning nechtasi o’nli kasr bo’la oladi?
   

; ; ; 31,12
A) 1 B) 2 C) 3 D) hammasi

2. 
   Agar x-y+ 5 = 7 bo’lsa, x - у + 3 ning qiymatini toping.
   

A) 5 B) 10 C) -1 D) 1

3. Tenglamani yeching: 121 - (x+46) = 53

A) 18 B) 22 C) 27 D) 68
4. Quyidagi sxemadan foydalanib j = 12 bo’lsa,
natijani toping


A) 14 B) 13 C) 11 D) 10

5.

kasrning qiymatini toping.
A) 3 B) 4 C) 5 D) 0
6. 1 dan 11 gacha bo’lgan sonlar ko’paytmasi qanday raqam bilan tugaydi?
A) 0 B) 1 C) 5 D) 3
7. Akvariumning bo’yi 3 metr, eni 7 metr va balandligi 5 metrga teng. Agar akvarium ichida 25 m³suv bo’lsa, akvarium to’lishi uchun unga yana qancha suv quyish kerak? (m³)
A) 75 B) 80 C) 85 D) 90
8. A mulohaza “ko’paytmasi 1 ga teng sonlar teskari sonlar”, B mulohaza “ sonning raqamlar yig’indisi 9 ga bo’linsa,bu son 9 ga bo’linadi” quyidagilarning qaysi biri to’g’ri

1. 
   A va B rost
   
2. 
   A rost B yolg’on
   

3. 
   A yolg’on B rost
   
4. 
   A va B yolg’on
   

9. Quyida muntazam uchburchak, kvadrat va muntazam oltiburchak tasvirlangan. Kvadratning tomoni 5 sm ga, uchburchakning tomoni 7 sm ga va oltiburchakning tomoni 3 sm ga teng bo’lsa, qaysi shaklning perimetri eng katta bo’ladi?

A) uchburchak B) to’rtburchak C) oltiburchak D) hammasi teng

10. 
    
    

A) 156 B) 157 C) 158 D) 3112
11. 3 sutka 1 soat 1 minut 2 sekund necha sekundga teng?
A)262682 B)262862 C)282662 D)282622
12. Alisherda bor olmalarning yarmi Boburda bor. Samandardagi olmalar soni Alishernikidan kam. Boburning olmalari esa Samandarnikidan kam. Eng kam olmalar kimga tegishli?
A) Alisher B) Samandar C) Bobur D) Aniqlab bo’lmaydi
13. Hisoblang. 2021 + (2019 -2018) - 2019
A) 3 B) 2019 C)4 D) 2020
14. Proporsiyaning noma‘lum hadini toping
15:x=6,3:4,2

A) 22,5

B) 12,5

C) 10

D) 30

15. Qanday uchta natural sonni qo’shsak ham , ko’paytirsak ham natijalar teng bo’ladi?
A) (2; 3; 4) B) (1; 2; 3) C) (3; 4; 5) D)(4; 5; 6)