4. Son qanday raqam bi Ian tugaydi? 27 6

19 19

A) 2 ¹⁵ B) 3_! C) 3 D) 9
19 19 19 19
15. n.·m, k,/ -namra l sonlar. Agar n·m = 21, m·k = 35, Id = 40 bo'lsa, n +m + k + l
yig'ind ini toping?
A) 32 B) l3 C) 23 D) 31
16. Ifodaning qiymatini toping. (4·6² :2³ + l 6}s
A) 170 B) 180 C) 710 D) 810
17. Tengla maning ildizini toping. n ·n ·n ·n = 81
A) 3 8) 9 C) ll D) l 9
l 8. Magazinga har birida 25 tadan daftar bo'lgan bir nechta bog'lam va yana 15 ta daftar keltirild i. Ila mmasi bo'lib 340 ta daftar keltirilgan bo'lsa, magazinga ha rruna si bo'lib necha bog' lam daftar kelti rilgan?
A) 12 B) 13 C) 10 D) 23

19. 
    Uchta sonning o'rta arifmctigi 3,5 ga tcng. Lkkinchi son birinchi sondan 2,5 marta karta, uchincbi son ikkinchisidan 0,6 ga katta. Bu son lami toping.
    

A) 1,65; 4,125;4,725 B) 2; 5; 5,6 C) 2,5; 6,25; 6,85 D) 1,55; 3,875; 4,475

19. 
    lfodani soddala shtiring 2,4x -1,6x + 3,2x -:r va x = 46 da uning qiymatini toping. A) 128 B) 148 C) 138 D) 46
    

,
21. To'g' ri to'rtburchakning yuzi 247 srn²
en i 13 srn. To'g'ri to'rtburchakning perimetrini

toping.
A) 56 sm B) 54 srn D) 32 srn D) 64 sm