Đề thi Olympic Tiếng Anh lớp 9 vòng 17 năm 2013 - 2014

Which of the following number lines represents the solution to the inequality x + 8 > 3x – 6, x ∈ R?

A square has an area of 196 cm². Given that π = 3.14, what is the area of the largest circle that can be drawn within this square?

If a line of best fit were drawn on the scatter plot above, the coordinate point that would lie closest to the line of best fit would be

A farmer and his son leave a barn at the same time and walk in opposite directions checking a fence line. The son walks at a speed of 3.5 km/h, and the farmer at 4.0 km/h. How much time will have elapsed when the farmer and his son are 2.5 km apart?

How many numbers between 200 and 400 begin or end with 3?

If f(3) = 15 and f(5) = 45, which of the following could be f(x)?

PQRS is a parallelogram and ST = TR. What is the ratio of the area of triangle QST to the area of the parallelogram?

A picture is copied onto a sheet of paper 8.5 inches by 10 inches. A 1.5 inch margin is left all around. What area in square inches does the picture cover?

The table above shows the results of a poll which asked drivers how many accidents they had had over the previous 5 years. What is the median number of accidents per driver?

The calculator keystroke sequence that would give the solution of the expression shown above is