Bilimlarbellashuvi

9. .Hisoblang. 99-97+95-93+91-89+……..+3-1=
A)46 B)48 D) 50 E)40
10. 529 niqandaysongabo`lgandato`liqsizbo`linma 31, qoldiq 2 bo`ladi
A) 19 B)17 D) 27 E) 29
11. Hisoblang 12³-28:7
A) 425 B) 1724 D) 32 E) 56
12 . 2¹⁰+3¹¹ yig`indining oxirgi raqamini toping
A)1 B)3 D) 7 E) 5
13. Quyidagi 6m= (n+12):3 ifodadan n ni toping.
A) n=18m-4 B) n=18m-12 D) n=2m-12 E) n=6m -4
14. Agar m++2=20 bo`lsa 5m+5n+4,74+5,26 ni toping.
A) 100 B)202 D) 102 E) 200
15 Ikki sonning yig`indisi 8,2 ga teng.Ulardan biri ikkinchisidan 4 marta kichik shu
sonlarni toping.
A) 6 B)6,24D) 6,56 E) 5,56
16. Hisoblang (1,28 * 6,4*0,32)/0,512-6/5
A) 3,92 B)4,9 D)0,12 E) 3,82
17. Yozuvida 0, 8, 9 raqamlariishtiroketganbarchauchxonalisonlarnechta?
A) 4 ta B) 5 D) 6 E) 3 ta
18. To`g`ri burchakli parallelepipedning hajmi 105 sm³ , eni 5 sm balandligi esa
undan 2 sm qisqa parallelepipedningbo`yini toping.
A) 16 sm B) 7 smD) 17smE) 20 sm
19. Kubning sirti 600 sm ² bo`lsa uning barcha qirralari yig`indisini toping.
A)60 B) 80 D) 120 E) 140
20. Bir necha natural sonning yig`indisi 60 ga teng.Ager shu sonlarning har biriga 2 ni qo`shib yig`indi hisoblansa , u 86 ga teng bo`ladi. Yig`indidanechta son qatnashgan.
A) 8 B) 9 D) 13 E) 16
21. Samolyot 1440 km ni 800 km/soat tezlik bilan , qolgan 510 km ni esa 850 km/soat tezlik bilan uchib o’tdi. Samolyot butun yo’lni necha soatda uchib o’tgan
A) 1,2 B) 2,4 D) 3,6 E) 2,3
22. Berilgan 5 ta sonning har biriga 2 ni qo`shib, so`ngra ularning har birini 3 ga ko`paytirib chiqqach hosil bo`lgan sonlar yig`indisi 75 ga teng bo`ldi. Berilgan sonlar yig`indisini toping?
A) 3 B) 5 D) 6 E) 2
23 1234567891011......7071 soni nechta xonali.
A) 190 B) 188 D) 101 E) 151