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Olympic

Authored by Hoàng Nguyễn

Specialty

6th - 8th Grade

Used 2+ times

Olympic
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34 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 3 pts

Cho x−61998+x−42000=x−20004+x−19986\frac{x-6}{1998}+\frac{x-4}{2000}=\frac{x-2000}{4}+\frac{x-1998}{6} thì x = ?

x = 0

x = 4

x = 568

x = 2004

2.

MULTIPLE CHOICE QUESTION

20 sec • 2 pts

Giá trị của x thỏa mãn x+165+x+363=x+561+x+759\frac{x+1}{65}+\frac{x+3}{63}=\frac{x+5}{61}+\frac{x+7}{59}  là

x = 1

x = 0

x = -66

x = 66

3.

MULTIPLE CHOICE QUESTION

20 sec • 3 pts

Những số nguyên tố x nào sau đây thỏa mãn 3<52x−1<103<\frac{5}{2}x-1<10  

x∈{1,6,9}x\in\left\{1,6,9\right\}  

x∈{2,3,4}x\in\left\{2,3,4\right\}  

x∈{5,7,10}x\in\left\{5,7,10\right\}  

  x ∈{13,17,23}x\ \in\left\{13,17,23\right\}  

4.

MULTIPLE CHOICE QUESTION

20 sec • 2 pts

Tìm x thỏa mãn: (2x−3)−(x−5)=(x+2)−(x−1)\left(2x-3\right)-\left(x-5\right)=\left(x+2\right)-\left(x-1\right)  

x = 5

x = 9

x = 0

x = 1

5.

MULTIPLE CHOICE QUESTION

20 sec • 2 pts

Tìm ba số x, y, z biết

x : y : z = 2 : 3 : 4 và x + 2y - z = -8

x = - 4

y = -6

z = -8

x = - 5

y = -9

z = -13

x = -6

y = -8

z = -10

x = -3

y = -7

z = -11

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Tìm ba số x, y, z biết

x−3=y4; y2=z3\frac{x}{-3}=\frac{y}{4};\ \frac{y}{2}=\frac{z}{3}  và x+y+z=14x+y+z=14  

x = 3

y = -5

z = -9

x = 4

y = -7

z = -11

x = -6

y = 8

z = 12

x = 8

y = 13

z = 15

7.

FILL IN THE BLANKS QUESTION

30 sec • 3 pts

Media Image

Mỗi thứ trong tuần dưới đây đều có một mã, trừ Chủ nhật. Bạn hãy tìm ra mã của ngày Chủ nhật.

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