Test B: Matematika

4. (3 − a) (a + 4) − a (−a − 6) ifodaning a = 12/5bo‘lgandagi qiymatini toping.
A) 24 B) 21 C) 52/5 D) 43/5
5. Agar ABC uchburchakning burchaklari A : B : C = 2 : 3 : 4 shartlarni qanoatlantirsa, uchburchakning qaysi tomoni eng katta bo‘ladi?
A) aniqlab bo‘lmaydi B) AB C) AC D) BC

6. Hisoblang: 2 12 5,  11 2 16
A) 8 B) 11 C) 9 D) 10
7 . Hisoblang: 22 22 22,         , , ... 22 11 11 11, , , , ... 11,
8ta 16ta
A) 52,8 B) 17,6 C) 35,2 D) 70,4
8. Uzunligi 80 metr bo‘lgan sim uzunliklari 5:7:13 nisbatda bo‘lingan. Hosil bo‘lgan simlardan eng yengilining uzunligini (m) toping.
A) 17 B) 16,4 C) 16,6 D) 16
9. Ketma-ketlikning istalgan 2 ta ketma-ket hadining yig‘indisi 10 ga teng. Agar uchinchi hadi 7 ga teng bo‘lsa, ketma-ketlikning dastlabki to‘qqizta hadi yig‘indisini toping.
A) 45 B) 47 C) 43 D) 37
10. 8, 6 (7) − 3, (8) ni hisoblang.
A) 431/90 B) 451/99 C) 451/90 D) 431/99
11. Masofa 5% ga orttirilib, tezlik 30% ga kamaytirilsa, harakatlanish vaqti necha foizga ortadi?
A) 35 B) 45 C) 25 D) 50
2 ≤ 9x tengsizlikni qanoatlantiruvchi barcha tub sonlar yig‘indisini toping.

A) 15 B) 12 C) 17 9a b^4 32 c d^3 13. Ifodani soddalashtiring: 3 2  ( 2 3  a b3 2 ) 16c d		D) 24
3a b^23ab 3a b^2 A)  B) C) 2d 2d 2d