5 ta sonning o‘rta arifmetigi 18,4 ga teng. Bu sonlarga yana bitta son qo‘shib, o‘rta arifmetik qiymat hisoblangan edi, u 20 ga teng chiqdi. Qo‘shilgan sonni toping

1. 
   5 ta sonning o‘rta arifmetigi 18,4 ga teng. Bu sonlarga yana bitta son qo‘shib, o‘rta arifmetik qiymat hisoblangan edi, u 20 ga teng chiqdi. Qo‘shilgan sonni toping. _____________ __________________________________________________________________
   
2. 
   _________ __________________________________________________________________
   
3. 
   ____ __________________________________________________________________
   
4. 
   __________ __________________________________________________________________
   
5. 
   __________________________________________________________________________________
   
6. 
   Yuk mashinasi do‘konga ombordan har biri a kilogrammdan 15 yashik olxo‘ri va har biri b kilogrammdan 20 yashik olma keltirdi. Do‘konga necha kilogramm meva keltirilgan?__________________________________________________________________________________________
   
7. 
   Bankka 50 000 so‘m pul qo‘yildi. Bir yildan so‘ng jamg‘arma p% ko‘paydi. Bir yildan keyin jamg‘armaning miqdori necha so‘mga yetdi?________________________ __________________________________________________________________
   
8. 
   -11,401-23,17+4,401-10,83=_____ _________________________________________________________________
   
9. 
   5,7p-2,7q+0,3p+0,8q+1,9q-p=____ __________________________________________________________________
   
10. 
    ______ _________________________________________________________________
    
11. 
    =_ __________________________________________________________________
    
12. 
    3m-(5m-(2m-1))=________ __________________________________________________________________
    
13. 
    Bolalar oromgohi uchun 10 ta shaxmat va 15 ta koptok sotib olishdi. Bitta shaxmat a so‘m, bitta koptok b so‘m turadi. Jami xarid uchun qancha pul to‘langan?_________________________________________________________________________________________
    
14. 
    = __________________________________________________________________
    
15. 
    (x-5)-(5-3x)=2___________ __________________________________________________________________
    
16. 
    7x+3y-(-3x+3y)=_________ __________________________________________________________________
    
17. 
    Agar 10 dirham pul ikki oyda 5 dirham foyda keltirgan bo‘lsa, 8 dirham puldan uch oyda qancha foyda olish mumkin?____________________ __________________________________________________________________
    
18. 
    Uchburchak bir tomonining uzunligi a ga teng. Ikkinchi tomoni uzunligi bu tomonning 80% ini tashkil qiladi. Uchinchi tomoni esa birinchi va ikkinchi tomonlar yig‘indisining yarmiga teng bo‘lsa, shu uchburchakning perimetrini toping._________________ __________________________________________________________________
    
19. 
    8y-9-4y+5=12y-4-5y______ __________________________________________________________________
    
20. 
    _______________ __________________________________________________________________
    
21. 
    _______ __________________________________________________________________
    
22. 
    _______________________________________________________________
    
23. 
    ___ __________________________________________________________________
    
24. 
    _ __________________________________________________________________
    
25. 
    ___ __________________________________________________________________
    
26. 
    Uchta kichik korxonada 792 ta mahsulot tayyorlandi. Ikkinchi kichik korxonada birinchi kichik korxonaga qaraganda 3 marta ko‘p, uchinchi kichik korxonada esa ikkinchisidagidan 2 marta kam mahsulot tayyorlandi. Har bir kichik korxonada nechtadan mahsulot tayyorlangan?_________________ __________________________________________________________________________
    
27. 
    Teng yonli uchburchakda asos yon tomonning ¾ qismini tashkil etadi. Agar uchburchakning perimetri 22 sm ga teng bo‘lsa, uning tomonlari uzunliklarini toping.________ ____________________________________________________________________________
    
28. 
    Sotuvchi molining 20% ini 40% foyda bilan sotdi. Jami sotuvdan 32% foyda ko‘rish uchun u qolgan molini necha foiz foyda bilan sotishi kerak?__________________________ ____________________________________________________________________________
    
29. 
    20% li sharbat hosil qilmoqchisiz. Ayting-chi, necha litr qaynagan suvga 200 gramm shakar qo‘shasiz?__________________ ____________________________________________________________________________
    
30. 
    Idishning 1/5 qismi bo‘sh. Ahmad idishni to‘ldirmoqchi. U idishdagi suvning qancha qismi qadar suv quysa, idish to‘ladi? Unga yordam bering.___________________ ___________________________________________________________________________
    
31. 
    Uchta javonda hammasi bo‘lib 385 ta kitob bor. Birinchi javonda ikkinchisiga qaraganda 8 ta ko‘p, ammo uchinchi javondagidan 9 ta kam kitob bor. Har bir javonda nechtadan kitob bor?______________ ___________________________________________________________________________
    
32. 
    Birinchi to‘pda 75 m, ikkinchi to‘pda 120 m atlas bor edi. Ikkinchi to‘pdan birinchidan sotilganiga qaraganda 3 marta ko‘p atlas sotildi. Natijada birinchi to‘pda ikkinchisiga qaraganda 2 marta ko‘p atlas qoldi. Har bir to‘pdan necha metrdan atlas sotilgan? ___________________________________________________________________________