6-sinf Matematika olimpiada №1 Aprel 29, 2022Aprel 29, 2022 da chop etilgan InfoMaster tomonidan 6-sinf Matematika olimpiada №1 ga 1 fikr bildirilgan 0 12345678910111213141516171819202122232425 Vaqtingiz tugadi! 6-sinf Matematika olimpiada №1 2019-yil bilimlar bellashuvida tushgan savollar 1 / 25 1. Ratsional ifodani kanonik ko’rinishga keltiring A) 1/2 B) (1+2x)/(1-x) C) (1+x)/(1+2x) D) (1-x)/(1+2x) 2 / 25 2. a,b,c-natural sonlar. Agar a∙b=41 b∙c=82 bo’lsa, a+b+c ni hisoblang. A) 44 yoki 124 B) 44 C) 124 D) 43 3 / 25 3. 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) 1670000 D) 1220000 4 / 25 4. Qanday ikki xonali son o’z raqamlari yig’ndisidan 4 marta, ko’paytmasidan 3 marta katta? A) 36 B) 48 C) 27 D) 24 5 / 25 5. 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) 44 C) 47 D) 40 6 / 25 6. 1dan 10 gacha bo’lgan sonlar ichida nechta mukammal son mavjud? A) 7ta B) 1ta C) 4ta D) 6ta 7 / 25 7. 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) 99 B) 95 C) 88 D) 93 8 / 25 8. 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) 20ta B) 12ta C) 15ta D) 16ta 9 / 25 9. Tub sonlar ichida 3 ga bo’linadiganlari nechta? A) cheksiz ko’p B) 1ta C) yo’q D) 2ta 10 / 25 10. 13478+1347+134+13 yig`indi quyidagi qaysi songa qoldiqsiz bo`linadi A) 9 B) 3 C) 4 D) 5 11 / 25 11. 11 ga karrali barcha ikki xonali sonlarning o`rta arifmetigini toping ? A) 65 B) 50 C) 55 D) 60 12 / 25 12. 5100 soning tub bo’luvchilari yig’indisini toping. A) 14880 B) 151 C) 28 D) 27 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) 0,15 B) -0,79 C) -0,15 D) 0,12 14 / 25 14. 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) 12 B) 17 C) 24 D) 18 15 / 25 15. tenglamadan x ni toping A) 11/6 B) 5/4 C) 7/5 D) 4/5 16 / 25 16. Kubning barcha qirralari yig’indisi36 sm. Kubning sirtining yuzini toping. A) 27 B) 54 C) 42 D) 126 17 / 25 17. 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 18 / 25 18. Dastlabki 200 ta natural sonlar ichida nechta bir raqami qatnashadi? A) 50ta B) 160ta C) 180ta D) 140ta 19 / 25 19. Usta ishnig 0,75 qismini 17/4 soatda bajaradi. Shu ishning 4/5 qismini qancha vaqtda bajaradi? A) 68/15 B) 67/15 C) 11/5 D) 31/85 20 / 25 20. Dastlabki 50 ta tub son ko’paytmasi nechta nol bilan tugaydi? A) 8ta B) 5ta C) 1ta D) 12ta 21 / 25 21. Qirqinchi va uch yuz yetmish oltinchi natural sonlar orasida nechta natural son bor? A) 336 B) 334 C) 335 D) 337 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) 40 B) 44 C) 47 D) 15 23 / 25 23. Hisoblang A) 1,5 B) 0,5 C) 1 D) 2 24 / 25 24. 1 dan 110 gacha bo’lgan sonlar ichida 3 ga ham, 5 ga ham bo’linmaydiganlari nechta? A) 64 B) 56 C) 60 D) 38 25 / 25 25. ni hisoblang A) 19/56 B) 6/13 C) 5/14 D) 13/17 0% Testni qayta ishga tushiring Author: InfoMaster Matematika olimpiada
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