Uy » Online olimpiada » Matematika olimpiada » 6-sinf Matematika olimpiada №1 Matematika olimpiada 6-sinf Matematika olimpiada №1 InfoMaster Aprel 29, 2022 242 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 0 0 12345678910111213141516171819202122232425 Vaqtingiz tugadi! Tomonidan yaratilgan InfoMaster 6-sinf Matematika olimpiada №1 2019-yil bilimlar bellashuvida tushgan savollar 1 / 25 1. 4(n-1)єN son 1, 2, 3, 4, 5, 6, 8, 10 va 20 ga qoldiqsiz bo’linsa, n ning eng kichik natural qiymatini toping. A) 27 B) 25 C) 31 D) 28 2 / 25 2. a,b,c-natural sonlar. Agar a∙b=41 b∙c=82 bo’lsa, a+b+c ni hisoblang. A) 124 B) 44 C) 43 D) 44 yoki 124 3 / 25 3. 1 dan 110 gacha bo’lgan sonlar ichida 3 ga ham, 5 ga ham bo’linmaydiganlari nechta? A) 64 B) 56 C) 38 D) 60 4 / 25 4. 13478+1347+134+13 yig`indi quyidagi qaysi songa qoldiqsiz bo`linadi A) 9 B) 5 C) 3 D) 4 5 / 25 5. Tub sonlar ichida 3 ga bo’linadiganlari nechta? A) 2ta B) yo’q C) cheksiz ko’p D) 1ta 6 / 25 6. Bir gektar ko’kalamzor bir yil davomida havoni 70 tonna changdan tozalashga qodir. Umumiy maydoni 16000 ga bo’lgan ko’kalamzor bir yilda havoni necha tonna changdan tozalaydi? A) 1120000 B) 1670000 C) 1220000 D) 112000 7 / 25 7. 32.816.549 ko`paytma necha xonali son ? A) 50 B) 46 C) 52 D) 37 8 / 25 8. Yarmining yarmi, yarmdan yarimga ortiq bo’lgan sonning uchlangangini toping. A) 6 B) 15 C) 24 D) 12 9 / 25 9. x va y sonlar ayirmasining uchlanganini yozing va shu ifodaning x=-0,37 va y=-0,42 bo`lganida son qiymatini toping. A) -0,79 B) 0,15 C) -0,15 D) 0,12 10 / 25 10. 32 dan 62,4 necha foiz ortiq? A) 85 B) 95 C) 90 D) 89.5 11 / 25 11. 2 ta ketma-ket toq sonlar yig`indisi quydagilardan qaysi biri albatta bo`linadi? A) 5 B) 3 C) 6 D) 4 12 / 25 12. Dastlabki 200 ta natural sonlar ichida nechta bir raqami qatnashadi? A) 140ta B) 50ta C) 180ta D) 160ta 13 / 25 13. Usta ishnig 0,75 qismini 17/4 soatda bajaradi. Shu ishning 4/5 qismini qancha vaqtda bajaradi? A) 67/15 B) 11/5 C) 31/85 D) 68/15 14 / 25 14. Hisoblang A) 2 B) 0,5 C) 1,5 D) 1 15 / 25 15. n, n+3, n+4, n+5, n+6, n+8, n+10, n+12, n+15 sonlarining o’rtadagisi 10 gateng bo’lsa, ushbu barcha sonlar yig’indisini toping. A) 95 B) 88 C) 93 D) 99 16 / 25 16. Agar p+10 va p+14 lar tub sonlar bo’lsa,u holda p tub sonning qiymatini toping. A) 23 B) 7 C) 12 D) 9 17 / 25 17. Qirqinchi va uch yuz yetmish oltinchi natural sonlar orasida nechta natural son bor? A) 334 B) 337 C) 335 D) 336 18 / 25 18. ni hisoblang A) 19/56 B) 5/14 C) 13/17 D) 6/13 19 / 25 19. tenglamadan x ni toping A) 5/4 B) 11/6 C) 7/5 D) 4/5 20 / 25 20. Uchta sonning uchinchisi ikkinchisidan nechta ortiq bo`lsa,ikkinchisi birinchisidan shuncha ortiq , bu sonlardan ikkita kichigining ko`paymasi 378, ikkita kattasining ko`paymasi 504 ekanligi ma`lum , shu uchta sondan birinchisini toping A) 17 B) 18 C) 12 D) 24 21 / 25 21. Dastlabki 50 ta tub son ko’paytmasi nechta nol bilan tugaydi? A) 8ta B) 5ta C) 1ta D) 12ta 22 / 25 22. Ishchi har kuni kunlik rejada ko’satilganidan 25 ta detal ortiq yasab, uch kunda rejadagi 7 kunga mo’ljallanganidan 15 ta ortiq detal yasadi. Ishchi har kuni nechtadan detal yasashi kerak edi ? A) 47 B) 40 C) 44 D) 15 23 / 25 23. Kubning barcha qirralari yig’indisi36 sm. Kubning sirtining yuzini toping. A) 42 B) 27 C) 126 D) 54 24 / 25 24. Akrom bog’dan bir nechta olma uzib chiqdi. Olmalarning 1/3 qismini va yana bir donasini ukasiga, qolgan olmalarning 1/3 qismini va yana bir donasini esa singlisiga berdi. Shunda uning o’zida 5 dona olma qolgan bo’lsa, Akrom bog’dan nechta olma uzib chiqqan? A) 12ta B) 16ta C) 20ta D) 15ta 25 / 25 25. Ratsional ifodani kanonik ko’rinishga keltiring A) (1+x)/(1+2x) B) (1+2x)/(1-x) C) (1-x)/(1+2x) D) 1/2 0% Testni qayta ishga tushiring Author: InfoMaster Foydali bo'lsa mamnunmiz
