(Maths Olympiad Competition Manual Book3《Probability》 Pr5&6 Question #4) Lyvia chooses a whole number from 1 to 30 at random. What is the probability that the number she chooses is a prime number?相关知识点: 试题来源: 解析 13. Prime numbers from 1 to 30: 2, 3, 5, 7, 11, 13,...
(Maths Olympiad Competition Manual Book3《Divisibility and Remainders》 Pr5&6 Question #14) Find the remainder when 201020102010⋯20102009 groups of ′2010′ is divided by 9.相关知识点: 试题来源: 解析 6. The remainder of a number when divided by 9 = the remainder when the sum of all ...
(Maths Olympiad Competition Manual Book3 《Permutations and Combinations》 Pr5&6 Question #16)There are 5 girls and 7 boys in a class. How many ways are there to form a group of 4 such that there must be at least a boy in the group? 相关知识点: ...
百度试题 结果1 题目(Maths Olympiad Competition Manual Book《Manipulation of Fractions》 Pr& Question #) Evaluate . 相关知识点: 试题来源: 解析 . .反馈 收藏
(Maths Olympiad Competition Manual Book3《Divisibility and Remainders》 Pr5&6 Question #21) Find the least possible number such that it satisfies all of the following conditions: (1) it leaves a remainder of 3 when divided by 5, (2) it leaves a remainder of 4 when divided by 7,and (...
(Maths Olympiad Competition Manual Book3 《Permutations and Combinations》 Pr5&6 Question #19)Bernice wants to arrange three ordinary dice in a row. Find the number of ways that she can arrange them such that at least one die will show the number 2. 相关知识点: 试题来源: 解析 91. Nu...
(Maths Olympiad Competition Manual Book3 《Perm utations and Combinations》 Pr5&6 Question #11)How many 2-digit numbers can be formed using the digits 1, 3, 5, 7 and 9 if each digit can only be used once in every number? 相关知识点: ...
(Maths Olympiad Competition Manual Book3《Problem Solving》 Pr5&6 Question #54) Bottle A and Bottle B are each filled with some water. If water from Bottle B is poured into Bottle A until it reaches the brim, there will be 16 l of water left in Bottle B. If water from Bottle A ...
(Maths Olympiad Competition Manual Book3 《Problem Solving》 Pr5&6 Question #12)In a town, there lived some Chinese, Malays and Indians in the ratio 10:8:3. A few years later, a total of 72 Chinese and Malays moved out of the town. The ratio of the number of Chinese to the ...
1(Maths Olympiad Competition Manual Book3 《Problem Solving》 Pr5&6 Question #55)At a party, each person shook hands with everyone else present. Olive shook hands with 4 times as many boys as girls. Alan shook hands with 3 times as many boys as girls. How many people were at the part...