Đề thi Olympic Tiếng Anh lớp 9 vòng 13 năm 2013 - 2014

Of the following units, which would be most likely to measure the amount of sugar needed in a recipe for 2 dozen cookies?

Jim has 5 pieces of string. He needs to choose the piece that will be able to go around his 36-inch waist. His belt broke, and his pants are falling down. The piece needs to be at least 4 inches longer than his waist so he can tie a knot in it, but it cannot be more that 6 inches longer so that the ends will not show from under his shirt. Which of the following pieces of string will work the best?

After purchasing a flat screen television for $750, John realizes that he got a great deal on it and wishes to sell it for a 15% profit. What should his asking price be for the television?

If 300 jellybeans cost you x dollars. How many jellybeans can you purchase for 50 cents at the same rate?

If 6 is 24% of a number, what is 40% of the same number?

Lee worked 22 hours this week and made $132. If she works 15 hours next week at the same pay rate, how much will she make?

The last week of a month a car dealership sold 12 cars. A new sales promotion came out the first week of the next month and it sold 19 cars that week. What was the percent increase in sales from the last week of the previous month compared to the first week of the next month?

If 8x + 5x + 2x + 4x = 114, what is the value of the expression 5x + 3?

If two planes leave the same airport at 1:00 PM, how many miles apart will they be at 3:00 PM if one travels directly north at 150 mph and the other travels directly west at 200 mph?

What is the cost in dollars to steam clean a room W yards wide and L yards long it the steam cleaners charge 10 cents per square foot?