Stereometriya (fazoviy geometriya)

1. $(\sqrt{5} + \sqrt{2})^2 + (\sqrt{5} - \sqrt{2})^2$ ni hisoblang.

1. A) $10$
2. B) $14$
3. C) $7$
4. D) $12$

Javobni ko'rish

To'g'ri javob: B) $14$

2. $\frac{2x + 1}{3} = \frac{3y - 1}{4} = \frac{z}{2}$ va $x + y + z = 25$ bo'lsa, $z$ ni toping.

1. A) $6$
2. B) $8$
3. C) $10$
4. D) $12$

Javobni ko'rish

To'g'ri javob: B) $8$

3. Teskari proporsiya: $xy = k$. Agar $x = 8$ da $y = 15$ bo'lsa, $x = 12$ da $y$ ni toping.

1. A) $8$
2. B) $10$
3. C) $12$
4. D) $15$

Javobni ko'rish

To'g'ri javob: B) $10$

4. 0 dan 109 gacha sonlarni hosil qilishda qaysi raqam ko‘p ishlatilad?

1. A) 1
2. B) 0
3. C) 9
4. D) 2

Javobni ko'rish

To'g'ri javob: A) 1

5. Binoning 6-qavatigacha bo‘lgan zinaning uzunligi 2-qavatgacha bo‘lgan zinaning uzunligidan necha marta uzun? (qavatlar orasidagi zinalar soni bir xil deb hisoblansin)

1. A) 5
2. B) 3
3. C) 2.5
4. D) 4

Javobni ko'rish

To'g'ri javob: A) 5