Natural sonlar

Question 1

$a$ va $b$ natural sonlar uchun $a\cdot b=30$ bo‘lsa, $a+2b-1$ ifodaning eng kichik qiymatini toping.

Accepted Answer

15

Answer

16

Answer

12

Answer

31

Question 2

$a$, $b$, $c$ turli tub sonlar bo‘lsa, $a\cdot b\cdot c$ ko‘paytmaning eng kichik qiymatini toping.

Accepted Answer

30

Answer

70

Answer

105

Answer

42

Question 3

Agar $a+1$ son 3 ga qoldiqsiz bo‘linsa, $4+7a$ soni quyidagilardan qaysi biriga qoldiqsiz bo‘linadi ($a \in N$)?

Accepted Answer

3

Answer

7

Answer

5

Answer

11

Question 4

$a$ va $b$ natural sonlar uchun $\frac{a}{7}+\frac{b}{3}=5$ bo‘lsa, $a$ ning eng katta qiymatini toping.

Accepted Answer

28

Answer

14

Answer

21

Answer

35

Question 5

Eng katta to‘rt xonali juft sondan eng kichik uch xonali natural toq sonni ayiring.

Accepted Answer

9897

Answer

9899

Answer

9876

Answer

9898

Question 6

Hisoblang: $(38\cdot 54+38\cdot 42):24$

Accepted Answer

152

Answer

150

Answer

151

Answer

153

Question 7

Hisoblang: $139\cdot 163-160\cdot 139+141\cdot 175-172\cdot 141$

Accepted Answer

840

Answer

870

Answer

852

Answer

864

Boshqa mavzular