Arifmetik progressiyaning oxirgi hadini toping.
A)68 B)78 D)83 D)73
2. 100 dan oshmaydigan juft sonlar yig’indisini
toping
A)25 B)2550 C)2450 D)2400
3.
A)1 va 3 B)3 va 1 C)2 va 3 D)3 va 3
4. Agar va ekanligi ma’lum bo’lsa, arifmetik progressiyaning 5 ta hadi yig’indisini toping.
A)20 B)-20 C)10 D)-10
5. Arifmetik progressiyaning uchinchi va to’qqizinchi hadlarining yig’indisi 8 ga teng . Shu progressiyaning birinchi 11 ta hadining yig’indisini toping.
A)88 B)22 C)44 D)55
6. Arifmetik progressiyaning n ta hadi yig’indisi
bilan ifodalansa, progressiyaning 6- hadini toping.
A)41 B) 44 C)47 D)50
7. bo’lsa, n=?
A)5 B)4 C)6 D)7
8.
A)3 va 4 B)48 va 0,25 C)3 va 5 D) A va B
9. Hisoblang:
A) B) C) D)
10. bo’lsa,
A)225 B)450 C)150 D)250
11. Geometrik progressiyada q =2 va . b
3=?
A)6 B)24 C)12 D)9
12. va q=4 bo’lsa , b
11=?
A)60 B)30 C)120 D)240
13. Agar velosipedchi birinchi soatda 15km yurib , keying har bir soatda shundan oldingi soatdagidan 1
km kam yursa , u 54 km yo’lni necha soatda o’tadi?
A)3 B)3,5 C)4 D)5
14. Kinoteatr zalida 10 qator joy bo’lib , har bir keying qatorda oldingisidan 20 tadan joy ortiq. Eng oxirgi qatorda 280 ta joy bor.Kinoteatrga qancha tomoshabin ketadi?
A)2000 B)2100 C)1800 D)1900
15. Sharlar uchburchak shaklida tuzilgan. Birinchi qatorda 1 ta, ikkinchi qatorda 2 ta, uchinchi qatorda 3 ta shar bor va h.k. Agar sharlarning hammasi 15 ta bo’lsa, ular nechta qatorga tizilgan ?
A)5 B)6 C)4 D)7
16. Ko’pburchakning perimetri 158 sm. Uning tomonlari esa ayirmasi 3 bo’lgan arifmetik progressiya tashkil etadi. Eng kata tomoni 44 sm .Ko’pburchakning nechta tomoni bor?
A)5 B)6 C)4 D)7
17. 3 ga qoldiqsiz bo’linadigan barcha musbat ikki xonali sonlarning yig’indisini toping.
A)1665 B)1565 C)1655 D)3330
18. (n )Ushbu ko’paytmani toping : n(n-1)(n-2)…(n-2n)
A) B)0 C)-n
2 D)aniqlab bo’lmaydi
19. Cheksiz kamayuvchi geometric progressiyaning yig’indisi 4 ga, uning hadlari kublarining yig’indisi esa 192 ga teng .Progressiyaning maxrajini va birinchi hadii toping.
A)6 va -0,5 B)-0,5 va 6 C)-0,5 va 3 D)-2 va 12
20. 2,10,26… sonli ketma-ketlik
quyidagi xossaga ega; ikkita qo’shni hadlarining ayirmalari ushbu 8,16,24 … arifmetik progressiyani tashkil qiladi. Ketma-ketlikning 11- hadini toping.
A)442 B)440 C)450 D)504
21. 1+7+13+…+x=280 tenglamani yeching.
22.
23. =
24. geometric progressiyaning ketma-ket hadlari bo’lsa,
ni soddalashtiring;
25. ni hisoblang.
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B
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B
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A
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B
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C
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A
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C
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D
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A
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B
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C
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C
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C
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D
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A
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C
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A
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B
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B
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A
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