de thi olympic tieng anh lop 10 vong 3 nam hoc 2013 2014

de thi olympic tieng anh lop 10 vong 3 nam hoc 2013 2014 tài liệu, giáo án, bài giảng , luận văn, luận án, đồ án, bài tậ...

Đề thi Olympic Tiếng Anh lớp 10 vòng 3 năm học 2013 - 2014

Đề thi số 1

Câu 1 Use the scale drawing above to estimate What's the diameter of the hole in the

center of the drawing?

A 8 inches B 12 inches

C.1/2inches D.1/8inches

E 4 inches

Câu 2 The area of a rectangular field is represented by (2k2 + 27k + 70) feet, and the width of the field is represented by (k + 10) feet Which expression represents the length,

in feet, of the rectangular field?

C 2k2+ 26k + 60 D 2k2- 26k - 60

E 2k + 7

Câu 3 The scatter plot above shows data from an experiment that tested the amount of

lactic acid present in aging cheese Which best describes the relationship between the age

of the cheese and the amount of lactic acid present in the cheese, as shown in the scatter plot?

A There is no correlation

B There is a positive correlation

C There is a negative correlation

D There is a non-linear correlation

E None of them

Câu 4 Which of the following is equivalent to (2x2y + xy + 2xy2)/xy?

A 4

B 3xy + 2x

C 2x + 1 + 2y

D 2x3y2+ x2y2+ 2x2y3

E None of them

Câu 5 Factor: 9x2- 9

A 9(x - 1)

B 9(x - 1)2

C 3(x + 3)(3x - 1)

D 9(x + 1)(x - 1)

E 9(x + 1)2(x - 1)2

Câu 6 Which of these pairs of equations describes lines that are perpendicular?

A y = -4/5x - 3 and y = -5/4x + 3

B y = 2/7x - 3 and -7/2x - 4

C y = 3x + 9 and y = 3x - 15

D y = 5/2x - 4 and y = 2/5x + 2

E None of them

Câu 7 Which of these graphs represents a function?

A B.

E None of them

Câu 8 Which of the following is equivalent to the expression: (6b + 5c – 9) – 4(2b – c –

1)?

A –2b + c – 13

B –2b + 9c – 5

C 4b + 9c – 10

D 4b + 6c – 8

E 4b + 6c + 8

4x + 3y = 5 -3x - 6y = 0

Câu 9 What is the solution of the system of linear equations above?

A (-1, 2) B (1, -2) C (2, 1) D (1, 2) E (2, -1)

Câu 10 Solve: 3k - 7(k + 5) - 5 < 0

A k < - 10 B k > - 10 C k < 0 D k > 0 E None of them

Đề thi số 2

Câu 1 What is the area of the triangle shown in the diagram above?

A 192 square inches

B 384 square inches

C 154 square inches

D 48 square inches

E 96 square inches

Câu 2 What is the equation of the line shown in the graph above?

A y = 2x + 2 B y = -1/2x + 2

C y = -2x + 2 D y =1/2x + 2

E y = x + 2

Câu 3 Which of these graphs represents the solution of x - 4 > 1 or 2x + 2 ≤ -6?

B

C

D

E None of them

Câu 4 Which of these inequalities describes this graph?

A -5 < x < 1 B -5 < x ≤ 1

C -5 ≤ x ≤ 1 D -5 ≤ x < 1

E None of them

Câu 5 What is the value of x ?

Câu 6 What is the value of x in the right triangle above?

Câu 7 Which of these dimensions form a rectangle similar to a rectangle with a width of

2 inches and a length of 5 inches?

A 2 inches by 10 inches

B 4 inches by 25 inches

C 6 inches by 9 inches

D 6 inches by 15 inches

E 6 inches by 20 inches

Câu 8 A box has a volume of 2880 cubic inches, a height of 20 inches, and a square base.

What is the length of a side of the base?

C 48 inches D 96 inches

E 144 inches

Câu 9 Seven students in gym class shot 20 free throws each The number of free throws

made successfully is shown in the table above What is the median number of free throws made successfully?

Câu 10 A committee consists of 6 students and 4 teachers If two committee members

are selected at random, what is the probability that the first member selected is a student and the second member is a teacher?

A.1/5 B.4/15 C.1/24 D.6/25 E.1/2

Đề thi số 3

Câu 1 At a fancy vegetable stand, Jim bought purple tomatoes for $8 each and Aubrey

bought organic giant cabbages for $12 each In total, they paid $104 for 10 vegetables How many cabbages did Aubrey buy?

Câu 2 What is the apparent solution to the system of equations graphed above?

A (-2, -2) B (-2, 2) C (2, -2) D No solution E (2, 0)

Câu 3 Joe has $20.00 A six-pack of soda costs $1.89, including tax What is the greatest

number of six-packs of soda he can buy?

Câu 4 Determine the slope m, x-intercept, and y-intercept of the equation 5x – 2y = 10.

A slope m = 2.5, x-intercept = (2, 0), and y-intercept = (0, -5)

B slope m = -2.5, x-intercept = (2, 0), and y-intercept = (0, -5)

C slope m = 0.4, x-intercept = (-5, 0), and y-intercept = (0, 2)

D slope m = -0.4, x-intercept = (-5, 0), and y-intercept = (0, 2)

E slope m = 2, x-intercept = (-2, 0), and y-intercept = (0, -5)

Câu 5 What is the ratio of the area of a circle with radius r to the circumference of the

circle?

The first term is 2.

Each term after the second is found by adding 5 to the immediately preceding term

Câu 6 A pattern is described above What is the fifth term in the pattern?

Câu 7 Which of the following must be true for △QRS?

A QR + RS = QS B QR + QS < RS C QS + RS > QR

Câu 8 The math club sold candy bars as a fundraiser The number of candy bars sold by

each member is shown above Which frequency chart accurately represents the data?

E None of them

Câu 9 If x = 4 and y = -1, what’s the value of the expression √ 2x - 8y ?

Câu 10 Evaluate: 3 – 33+ 7 × 3

Đề thi số 4

2x − 5y = −11 4x + 15y = 3

Câu 1 What is the x-value of the solution to this system of equations?

Câu 2 The graph represents the total cost in dollars, y, to rent a car and drive x miles.

Which equation describes this graph?

A y =x/10+ 15 B y =x/15+ 10 C y = 10x + 15

D y = 15x + 10 E y = 25x + 10

Câu 3 Which graph shows the solution to the inequality 2x − 3y < −6?

A B.

E None of them

Câu 4 Jasmine and Nina have documents printed at a copy store Each page that is

printed costs the same Jasmine spends $20 to have a 250-page document printed How much will it cost Nina to have a 150-page document printed?

Câu 5 The land area of the continent of Asia is approximately 44 million square

kilometers Which expression shows 44 million written in scientific notation?

A 44×106 B 44×107 C 4.4×106 D 4.4×107 E 44×102

Câu 6 Violet walked 2/3 of the way around a lake She walked5/2 miles What is the total distance around the lake?

A 15/4miles B 19/6miles C 11/4miles D 5/3miles E 1/3miles

Câu 7 Which expression has the same value as 5-3?

A 1/5•3 B 5•(−3) C 1/5•5•5 D -5•-5•-5 E 1/3

Câu 8 Evaluate: 4 + 2(2 – 5)2– 1

Câu 9 What is the value of ab2when a = 3 and b = 4?

Câu 10 Which expression is equivalent to 5 − 3x(2x − 4)?

A 4x2− 8x B 4x2+ 8x C −6x2+ 12x + 5

D −6x2 - 12x + 5 E 6x2+ 12x + 5