2016AMC8英文版试卷.docVIP

2013 AMC 8 Problems Problem 1 Amma wants to arrange her model cars in rows with exactly 6 cars in each row. She now has 23 model cars. What is the smallest number of additional cars she must buy in order to be able to arrange all her cars this way? Solution Problem 2 A sign at the fish market says, 50% off, today only: half-pound packages for just $3 per package. What is the regular price for a full pound of fish, in dollars? Solution Problem 3 What is the value of?? Solution Problem 4 Eight friends ate at a restaurant and agreed to share the bill equally. Because Judi forgot her money, each of her seven friends paid an extra $2.50 to cover her portion of the total bill. What was the total bill? Solution Problem 5 Hammie is in the??grade and weighs 106 pounds. His quadruplet sisters are tiny babies and weigh 5, 5, 6, and 8 pounds. Which is greater, the average (mean) weight of these five children or the median weight, and by how many pounds? Solution Problem 6 The number in each box below is the product of the numbers in the two boxes that touch it in the row above. For example,?. What is the missing number in the top row? Solution Problem 7 Trey and his mom stopped at a railroad crossing to let a train pass. As the train began to pass, Trey counted 6 cars in the first 10 seconds. It took the train 2 minutes and 45 seconds to clear the crossing at a constant speed. Which of the following was the most likely number of cars in the train? Solution Problem 8 A fair coin is tossed 3 times. What is the probability of at least two consecutive heads? Solution Problem 9 The Incredible Hulk can double the distance he jumps with each succeeding jump. If his first jump is 1 meter, the second jump is 2 meters, the third jump is 4 meters, and so on, then on which jump will he first be able to jump more than 1 kilometer? Solution Problem 10 What is the ratio of the least common multiple of 180 and 594 to the greatest common factor of 180 and 594?