Ona tili (15 ta)

MATEMATIKA (15 TA)

417. 
     Namangandan Xorazmgacha masofa 1580 km, Toshkentdan Xorazmgacha 1100 km. Namangandan Toshkentgacha masofani toping.
     A) 485 km B) 480 km C) 380 km D) 385 km
     
     
418. 
     Tub ko‘paytuvchilarga noto‘g‘ri ajratilgan javobni toping.
     1) 24 = 2³∙3, 28 = 2²∙7; 2) 30 = 2∙3∙5 , 32 = 2⁵;
     3) 36 = 2²∙3², 42 = 2∙3∙7; 4) 48 = 2⁴∙3; 54 = 2²∙3³.
     A) 1, 2, 3 B) 1, 3 C) 2, 4 D) 4
     
     
419. 
     Quyidagi tasdiqlardan qaysilari to‘g‘ri?
     1) tub sonlar 2 dan boshlanadi; 2) murakkab sonlar 1 dan boshlanadi; 3) murakkab sonlar cheksiz ko‘p; 4) tub sonlar cheksiz ko‘p.
     A) 1, 3, 4 B) 1, 2, 3 C) 1, 2 D) 2, 3
     
     
420. 
     y = 1,1 bo‘lganda ifoda qiymatini toping. 8 + 2²y + 14y = ?
     A) 26,6 B) 25,8 C) 26,8 D) 27,8
     
     
421. 
     Avtomobil 1 soatda b litr benzin sarflaydi. 180 daqiqada qancha benzin sarflaydi?
     A) 3∙b B) 180/b C) 180∙b D) 3/b
     
     
422. 
     Quyidagi javoblarning qaysi birida faqat mukammal sonlar berilgan?
     A) 6; 8 B) 8; 24 C) 6; 28 D) 9; 28
     
     
423. 
     72 sonining natural bo‘luvchilari nechta?
     A) 6 B) 11 C) 12 D) 24
     
     
424. 
     Agar tenglamani yechimi x=4 bo‘lsa, x+3a=6x-2a+5 tenglamadan a ni toping.
     A) 5 B) 4 C) 0 D) 3
     
     
425. 
     24 va 32 sonlarining EKUB va EKUK larining ko‘paytmasini toping.
     A) 648 B) 720 C) 750 D) 768
     
     
426. 
     Bo‘yalgan soha yuzining bo‘yalmagan soha yuziga nisbatini toping.
     
     A) 3/7 B) 4/5 C) 1/2 D) 3/9
     
     
427. 
     Jadvalda harorat o‘zgarish jarayoni berilgan. Eng issiq vaqt qachon bo‘lgan?
     
     A) dushanba 12:00
     B) 15:00 dushanba
     C) seshanba 12:00
     D) chorshanba kunduzgi 3:00
     
     
428. 
     Shakllar quyidagicha tartiblangan:
     
     Javoblarning qaysi biri na’munadagi kabi tartiblangan?
     A) B) C) D)
     
     
429. 
     Quyida nechta qisqaradigan kasr bor?
     
     A) 2 B) 3 C) 4 D) 5
     
     
430. 
     Ikki to‘g‘ri chiziq kesishuvidan hosil bo‘lgan burchaklardan biri ikkinchisidan 70˚ ga katta bo‘lsa, kichik burchakni toping.
     A) 44˚ B) 45˚ C) 55˚ D) 125˚
     
     
431. 
     Yog‘ochni 13 bo‘lakka bo‘lish uchun uni necha marta arralash kerak?
     A) 15 B) 12 C) 13 D) 14