2. 外语
  3. David is to list consecutive positive integers starting from 1. Quantity A: The number of all possible candidates for the last i

David is to list consecutive positive integers starting from 1. Quantity A: The number of all possible candidates for the last i

admin2020-05-11  57
问题 David is to list consecutive positive integers starting from 1.
Quantity A: The number of all possible candidates for the last integer in his list if digit “4” appears 15 time
Quantity B: The number of all possible candidates for the last integer in his list if digit “4” appears 16 times
选项 A、Quantity A is greater.
B、Quantity B is greater.
C、The two quantities are equal.
D、The relationship cannot be determined from the information given.
答案B
解析 本题同样可使用列举法答题。选项A: 从1开始的连续正整数中第15次出现数字4的数是49，第16次出现数字4的数是54，第17次出现数字4的数是64。选项B: 第15次出现数字4的数可以是49到53间的任意一个数，共5个可能的数字。选项C：第16次出现数字4的数可以是54到63间的任意一个数，共10个可能的数字。
转载请注明原文地址:https://jikaoti.com/ti/y9dYFFFM
本试题收录于： GRE QUANTITATIVE题库GRE分类
0

GRE QUANTITATIVE

GRE

相关试题推荐
随机试题
最新回复(0)