Đề thi Olympic Tiếng Anh lớp 9 vòng 7 năm 2013 - 2014

Ramon surveyed his class and found that 28 out of 32 students preferred hamburgers to hot dogs. What percent is equivalent to 28/32?

Which graph represents the figure above reflected across the y-axis?

If the statement "All tigers have stripes" is true, which is also logically true?

The coordinate plane shows Stan’s house as point A and Jerry’s house as point B. What point is halfway between the 2 houses?

Which is an equivalent expression to 3³ × 3³ × 3?

What is x in the figure above?

Alicia is increasing the number of laps she can swim. After 2 weeks of practice, she can swim 2 laps. She doubles the number of laps she can swim every 2 weeks. How many laps can she swim immediately after her tenth week of practice?

The table shows the sizes and prices of popcorn containers at a theater. The theater owner plans to add a jumbo size popcorn container. To set the price of the jumbo size container, the owner will follow the pattern set by the other 4 popcorn sizes. What will be the price of the jumbo size container?

Erin is making muffins for his homeroom party tomorrow morning. The muffin recipe calls for 4 cups of flour and 2 cups of sugar. However, he only has 3.5 cups of flour. Erin needs to reduce the amount of sugar by the same proportion. How much sugar will Erin use?

Stanley needs to purchase a cylindrical corncrib. He wants the radius to be 6 feet. The corncrib should hold 1,700 cubic feet when full. How many feet tall will the corncrib be? Use π = 3.14. (Round to the nearest hundredth)