Đề thi Olympic Tiếng Anh lớp 11 vòng 27 năm 2013 - 2014

The Cineplex movie theater sold 280 tickets to a comedy, 175 tickets to a drama, and 245 tickets to an action film. What percentage of the total tickets sold were to the action film? (Round your answer to the nearest percent.)

A student tried to solve the equation above but made a mistake. In which step did the mistake first appear?

A drink contains 20% cranberry juice and the rest is apple juice. What is the ratio of cranberry juice to apple juice?

Use the ruler on the Mathematics Chart to measure the side lengths of rectangle PQRS and rectangle P′Q′R′S′ to the nearest 0.1 centimeter. Which of the following is closest to the scale factor used to dilate rectangle PQRS to create rectangle P′Q′R′S′?

Aida divides a number greater than 100 by a number greater than 10. Which statement about Aida's quotient is always true?

If y is a function of x in y = (1/2)x + 3, which of the following statements is true?

Solve for k: k – 9 = 36

The table above shows ordered pairs of a linear function. What are the x- and y-intercepts for the graph of this linear function?

Penelope opened a savings account with $200. If she withdraws x dollars from her account, which expression represents the new balance?

If c = 5 and d = 3, what is the value of 2c + c(d² – 6)?