Chiziqchalar

a B) b C) c D) d E) b yoki c

13. 
    2 marta berilgan nishonlar taxtasiga o’q otib, necha xil ballarni qo’lga kiritish mumkin?
    

A) 4 B) 6 C) 7 D) 8 E) 9

13. 
    A, B, C va D nuqtalar bir to’g’ri chiziqda qandaydir tartibda olingan, bunda AB=13, BC=11, CD=14 hamda DA=12. Eng chekkadagi nuqtalar orasidagi masofani toping.
    

A) 14 B) 38 C) 50 D) 25 E) 8

13. 
    1000 xonali 2020202020202020…2020 sondan eng ko’pi bilan nechta 2020 ni olib tashlasak qolgan sonlar yig’indisi 980 ga teng bo’ladi?
    

A) 1 B) 2 C) 3 D) 4 E) 5