9-sinf Matematika olimpiada №1 Sentabr 21, 2022Avgust 23, 2024 da chop etilgan InfoMaster tomonidan 9-sinf Matematika olimpiada №1 ga fikr bildirilmagan. 0 123456789101112131415161718192021222324 Vaqtingiz tugadi! Tomonidan yaratilgan InfoMaster 9-sinf Matematika olimpiada №1 2020-2021 o'quv yil tuman bosqichida tushgan savollar 1 / 24 1. Parallellogrammning 5 ga teng bo‘lgan diagonali uning 12 ga teng bo‘lgan tomoniga perpendikulyar. Parallelogrammning perimetrini toping. A) 48 B) 34 C) 44 D) 50 2 / 24 2. Hisoblang: A) 1 B) 1,5 C) 5 D) 0,5 3 / 24 3. P(x) ko‘phadni x-a ga bo‘lgandagi qoldiqni toping. A) 0 B) P(x-a) C) P(x) D) P(a) 4 / 24 4. Abituriyentga 36 ta masala berildi. To‘g‘ri yechilgan har biriga 3 ball beriladi. Noto‘g‘risiga 2 ball chegiriladi. 88 ball to‘plashi uchun o‘quvchi nechta masalani to‘g‘ri yechishi kerak? A) 34 B) 30 C) 32 D) 38 5 / 24 5. Agar (3-a)(3-b)(3-c)=(3+a)(3+b)(3+c) bo‘lsa, ni hisoblang. (Bunda ). A) -1/3 B) 1/9 C) 1/27 D) -1/9 6 / 24 6. Rombning diagonallari 6 va 8 ga teng bo‘lsa, uning tomonini toping. A) 5 B) 3 C) 6 D) 8 7 / 24 7. ifodani a=4, b=5 bo‘lgandagi qiymatini toping. A) 0 B) 2 C) -1 D) 1 8 / 24 8. Geometrik progressiyada dastlabki to‘rtta hadlari mos ravishda 6; 24; 96; bo‘lsa, ni toping. A) 22 B) 16 C) 15 D) 14 9 / 24 9. ni hisoblang. A) 3 B) -2 C) 2 D) 4 10 / 24 10. Teng yonli trapetsiyaning diagonali uni ikkita teng yonli uchburchakka ajratadi. Trapetsiyaning burchaklarini toping. 1. 2. 3. 4. A) 2 B) 4 C) 1 D) 3 11 / 24 11. Tarkibida 85% suv bo‘lgan 0,5 t sellyuloza qorishmasida 75% suv bo‘lgan qorishma olish uchun necha kg suvni bug‘lantirish kerak? A) 200 B) 400 C) 100 D) 300 12 / 24 12. stemadan ni toping. A) 7/3 B) 11/7 C) 7/11 D) 3/7 13 / 24 13. Tenglamaning natural sonlardagi yechimida ni toping: A) 4 B) 5 C) 2 D) 3 14 / 24 14. Yuzi 96 sm2, balandliklari 6 sm va 8 sm bo‘lgan parallelogrammning perimetrini toping. A) 56 sm B) 20 sm C) 40 sm D) 50 sm 15 / 24 15. Hovuzga uchta quvur o‘tkazilgan. Birinchisi hovuzni 12 soatda, ikkinchisi 8 soatda to‘ldiradi. Uchinchisi hovuzni 1 sutkada bo‘shatadi. Agar uchala quvur birgalikda ochib qo‘yilsa, bo‘sh hovuzning yarmi qancha vaqt(soat)da to‘ladi? A) 3 B) 2 C) 2,5 D) 1,5 16 / 24 16. Asoslari 18 va 12 ga teng bo‘lgan teng yonli trapetsiyaning diagonallari o‘zaro perpendikulyar. Trapetsiyaning yuzini toping A) 150 B) 125 C) 225 D) 400 17 / 24 17. 600 li burchakka bir-biriga tashqaridan urinuvchi ikkita aylana ichki chizilgan. Kichik aylananing radiusi ga teng. Katta aylananing radiusini toping. A) 2r B) 4r C) 3r D) 5r 18 / 24 18. Agar bo‘lsa, ni hisoblang. A) -4 B) ±4 C) 4 D) 3 19 / 24 19. Ifodaning eng kichik qiymatini toping: A) -4 B) 4 C) 12 D) -12 20 / 24 20. bo‘lsa, ifodaning qiymatini toping A) 2/3 B) 3/16 C) 15/16 D) 13/16 21 / 24 21. Agar bo‘lsa, ko‘paytmani hisoblang. A) -1 B) 1/33 C) 31/35 D) 1/35 22 / 24 22. To‘g‘ri burchakli uchburchakka ichki chizilgan aylana urinish nuqtasida gipotenuzani 5 va 12 ga teng kesmalarga ajratadi. Uchburchak yuzini toping A) 65 B) 35 C) 48 D) 60 23 / 24 23. Uchburchakning perimetri 24 sm ga teng bo‘lib, uning tomonlari uzunliklari arifmetik progressiya tashkil etadi. Shu uchburchakning kichik tomoni 6 sm bo‘lsa, uchburchak turini aniqlang. A) To‘g‘ri burchakli B) O’tkir burchakli C) O’tmas burchakli D) Bunday uchburchak yo’q 24 / 24 24. Tenglamani yeching: |x+6|=|x+10| A) -8 B) -6 C) 4 D) 6 0% Testni qayta ishga tushiring tomonidan Wordpress Quiz plugin Matematika olimpiada, Tuman 2020-2021 o'quv yili
