Uy » Online olimpiada » Matematika olimpiada » 6-sinf Matematika olimpiada №1 Matematika olimpiada 6-sinf Matematika olimpiada №1 InfoMaster Aprel 29, 2022 138 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. 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) 15ta D) 20ta 2 / 25 2. Kubning barcha qirralari yig’indisi36 sm. Kubning sirtining yuzini toping. A) 27 B) 54 C) 42 D) 126 3 / 25 3. 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) 31 B) 25 C) 27 D) 28 4 / 25 4. Tub sonlar ichida 3 ga bo’linadiganlari nechta? A) cheksiz ko’p B) 1ta C) yo’q D) 2ta 5 / 25 5. 1dan 10 gacha bo’lgan sonlar ichida nechta mukammal son mavjud? A) 6ta B) 7ta C) 4ta D) 1ta 6 / 25 6. Ratsional ifodani kanonik ko’rinishga keltiring A) (1-x)/(1+2x) B) 1/2 C) (1+2x)/(1-x) D) (1+x)/(1+2x) 7 / 25 7. 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) 44 C) 40 D) 15 8 / 25 8. ni hisoblang A) 19/56 B) 6/13 C) 5/14 D) 13/17 9 / 25 9. 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) 112000 B) 1120000 C) 1220000 D) 1670000 10 / 25 10. Ishchi har kunlik rejada ko`rsatilganidan 25 ta detal ortiq yasab , uch kunda rejadagi 7 kunga mo`ljallanganidan 15 ta ortiq detal yasadi. Ishchi har kuni nechta detal yasagan ? A) 15 B) 47 C) 40 D) 44 11 / 25 11. Qanday ikki xonali son o’z raqamlari yig’ndisidan 4 marta, ko’paytmasidan 3 marta katta? A) 48 B) 36 C) 27 D) 24 12 / 25 12. 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 13 / 25 13. x va y sonlar ayirmasining uchlanganini yozing va shu ifodaning x=-0,37 va y=-0,42 bo`lganida son qiymatini toping. A) 0,12 B) -0,79 C) -0,15 D) 0,15 14 / 25 14. 32.816.549 ko`paytma necha xonali son ? A) 52 B) 50 C) 37 D) 46 15 / 25 15. Dastlabki 200 ta natural sonlar ichida nechta bir raqami qatnashadi? A) 180ta B) 140ta C) 50ta D) 160ta 16 / 25 16. 13478+1347+134+13 yig`indi quyidagi qaysi songa qoldiqsiz bo`linadi A) 3 B) 5 C) 4 D) 9 17 / 25 17. 5100 soning tub bo’luvchilari yig’indisini toping. A) 28 B) 151 C) 27 D) 14880 18 / 25 18. Qirqinchi va uch yuz yetmish oltinchi natural sonlar orasida nechta natural son bor? A) 334 B) 335 C) 337 D) 336 19 / 25 19. 1 dan 110 gacha bo’lgan sonlar ichida 3 ga ham, 5 ga ham bo’linmaydiganlari nechta? A) 64 B) 38 C) 60 D) 56 20 / 25 20. Usta ishnig 0,75 qismini 17/4 soatda bajaradi. Shu ishning 4/5 qismini qancha vaqtda bajaradi? A) 31/85 B) 68/15 C) 11/5 D) 67/15 21 / 25 21. 32 dan 62,4 necha foiz ortiq? A) 90 B) 89.5 C) 95 D) 85 22 / 25 22. 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 23 / 25 23. Agar p+10 va p+14 lar tub sonlar bo’lsa,u holda p tub sonning qiymatini toping. A) 9 B) 12 C) 7 D) 23 24 / 25 24. 11 ga karrali barcha ikki xonali sonlarning o`rta arifmetigini toping ? A) 50 B) 60 C) 65 D) 55 25 / 25 25. Dastlabki 50 ta tub son ko’paytmasi nechta nol bilan tugaydi? A) 5ta B) 12ta C) 1ta D) 8ta 0% Testni qayta ishga tushiring Author: InfoMaster Foydali bo'lsa mamnunmiz
