18. 2 ta bo`sh joy bor. 3 nafar kishidan 2
nafarini su joyga necha xil usulda o`tqazish
mumkin?
A) 4 B) 6 C) 3 D) 9
19. Uchburchakning tomonlari 8, 10, 15
bo`lsa, perimetini toping.
A) 29 B) 33 C) 43 D) 39
20. Radiusi 3 sm bo`lgan doira yuzini toping.
(π=3,14 deb oling).
A) 28,26 B) 28,36 C) 21,126 D) 27,26
21. Agar, BD=4 va AC=8 bo`lsa, uchburchak
yuzini toping.
A) 32 B) 27 C) 16 D) 42
22. Jadvalda tumandagi iqtidorli
o`quvchilarning e`tiborga loyiq ishlari
to`g`risida ma`lumotlar keltirilgan:
Oktabr oyidagi barcha e`tiborga loyiq ishlar
soniga 4 oydagi gazeta maqolalari sonini
qo`shing.
A) 193 B) 141 C) 187 D) 180
23. Aylana uzunligi 25,12 sm ga teng. Shu
aylana radiusini toping.
A) 6,28 B) 3,5 C) 4 D) 4,6
24. Uchburchakning ikki tomoni mos
ravishda 8 va 10 ga teng. Uchinchi
tomonining eng katta qiymati nimaga teng?
A) 9 B) 17 C) 19 D) 10
25. Hisoblang: 4,(66)+2,5(5)-3,(2)=
A) 7 B) 4 C) 7,(4) D) 2,4(5)
26. Hisoblang:
39,6 – 21,5 ∙ (0,38 + 0,22) ∙ 0,6 – 5,3 ∙ 3,4=
A) 13,84 B) 15,62 C) 19,11 D) 10,78
27. Novvoyxonada non yopish uchun
birinchi kuni 5,42 t, ikkinchi kuni birinchi
kunga qaraganda 2,43 t, uchinchi kuni esa
dastlabki ikki kundagiga qaraganda 3,21 t
kam un ishlatildi. Novvoyxonada shu uch
kunda jami qancha un ishlatilgan?
A) 12,93 B) 19 C) 15,72 D) 13,61
28. Uchburchakning bir tomoni 8,65 dm
bo‘lib, u ikkinchi tomonidan 1,7 dm uzun.
Agar uchburchakning perimetri 23,89 dm
bo‘lsa, uning uchinchi tomoni uzunligini
toping.
A) 8,29 B) 7,12 C) 5,23 D) 10,11
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