AMC 8 Problems--2000 美国数学竞赛题.doc Problem 1 Aunt Anna is years old. Caitlin is years younger than Brianna, and Brianna is half as old as Aunt Anna. How old is Caitlin? Problem 2 Which of these numbers is less than its reciprocal? Problem 3 How many whole numbers lie in the ...
Problem 8 Ricardo has20202020coins, some of which are pennies (11-cent coins) and the rest of which are nickels (55-cent coins). He has at least one penny and at least one nickel. What is the difference in cents between the greatest possible and least possible amounts of money that Ri...
AMC 8 Problems--2000 1 Problem 1 Aunt Anna is Anna. How old is Caitlin? years old. Caitlin is years younger than Brianna, and Brianna is half as old as Aunt Problem 2 Which of these numbers is less than its reciprocal? Problem 3 How many whole numbers lie in the interval between and...
units are arranged in increasing size order so that their left edges and bottom edges align. The squares alternate in the color pattern white-gray-white-gray, respectively, as shown in the figure. What is the area of the visible gray region in square units? Problem 4 When Yunji added all ...
ORD PROBLEMS RELATED TO PERCENT与百分比相关的题 AMC8教材此书的章节: TRANSFORMATIONS转换 CONSECUTIVE INTEGERS 连续整数 OPERATIONS WITH DECIMALS小数运算 SETS AND VENN DIAGRAM集和维恩图解 COUNTING TECHNIQUES 计数技巧I VISIBILITY 可分性...
AMC_Problems_and_Solutions ●评分规则 25道选择题,满分150分,每题6分 (不会因题目难易不同而产生权重), 答对1题得6分,答错1题不得分不扣分,不答得1.5分 ●出分流程 官方解释: 大约比赛日后3周左右可以出分,成绩将以邮件的形式通知学校或考点负责老师。请联系该负责老师了解分数、是否晋级。(实际情况有可...
2015 AMC 8 Problems 1.How many square yards of carpet are required to cover a rectangular floor that is feet long and feet wide? (There are feet in a yard.) 2.Point is the center of the regularoctagon , and is the midpoint of the side What fraction of the area of the octagon is...
9Problems7,8and9areaboutthesekites. Page2 USA AMC8 2001 Thelargekiteiscoveredwithgoldfoil.Thefoiliscutfromarectangularpiecethatjust coverstheentiregrid.Howmanysquareinchesofwastematerialarecutofffromthefour corners? (A)63(B)72(C)180(D)189(E)264 ...
2018 AMC 8 Problems Contents 1 Problem 1 2 Problem 2 3 Problem 3 4 Problem 4 5 Problem 5 6 Problem 6 7 Problem 7 8 Problem 8 9 Problem 9 10 Problem 10 11 Problem 11 9 12 Problem 12 5 13 Problem 13 5 14 Problem 14 4 15 Problem 15 9 16 Problem 16 ...
AMC8 2016 AMC 8 Problems.docx2016 AMC Problems 1.The longest professional tennis match ever played lasted a total of 11 hours and 5 minutes. How many minutes was this? (A)605 (B) 655 (C) 665 (D) 1005 (E)1105 Solution 2.In rectangleABCD,AB=6andAD=8. PointMis the midpoint ofAD...