首页
登录
职称英语
Two positive integers a and b have only one common divisor, if b/a+2=18/7, then
Two positive integers a and b have only one common divisor, if b/a+2=18/7, then
游客
2024-01-13
37
管理
问题
Two positive integers a and b have only one common divisor, if b/a+2=18/7, then which of the following could be the value of (a-b)?
选项
A、5
B、3
C、4
D、7
E、6
答案
B
解析
两个正整数a,b只有一个公因子,那么这两个数的公因子必然为1,也就是说这两个数互质,b/a=18/7-2=4/7,所以b=4,a=7,那么a-b=3。
转载请注明原文地址:https://tihaiku.com/zcyy/3360199.html
相关试题推荐
InmanywaystheInternethashadaverypositiveeffectonsociety.Ithas
Onetypeofpersonthatiscommoninmanycountriesistheonewhoalwaystr
Onetypeofpersonthatiscommoninmanycountriesistheonewhoalwaystr
Onetypeofpersonthatiscommoninmanycountriesistheonewhoalwaystr
Onetypeofpersonthatiscommoninmanycountriesistheonewhoalwaystr
Onetypeofpersonthatiscommoninmanycountriesistheonewhoalwaystr
()studentwithalittlecommonsenseshouldbeabletoanswerthequestion.A、Ea
______studentwithalittlecommonsenseshouldbeabletoanswerthequestion.
Iaskedthesoldierwhathewasin______life.A、ordinaryB、dailyC、commonD、civil
Manythings______almostimpossibleintheancienttimesareverycommontoday.A、
随机试题
【11】[br]【13】[originaltext]Female:LadiesandGentlemen-welcometoAuckl
EarlySundaymorning,Igotanemergencycallonmyportableradiofromapo
病人的权利不包括A.平等医疗权 B.知情同意权 C.要求保密权 D.保管病
患者,女性,42岁,近1年来血压逐渐升高,伴头痛、烦躁、心悸,多汗等,上周出现视
片剂的规格量,即A.每片重量B.平均重量C.生产厂家的处方量D.每片实际含量E.
患者,女性,28岁,近半年来全身乏力,低热,关节疼痛。免疫学检查:抗Sm抗体阳性
.跨越长江、连接沪苏的快速通道崇启大桥将从江苏启东到上海的车程缩短100多公里
2020年1—6月,限额以上单位商品零售额同比约增长:A.6.53% B.
(2016年真题)某交易者预测5月份大豆期货价格将上升,故买入50手,成交价格为
设B是三阶非零矩阵,已知B的每一列都是方程组的解,则t等于A.0 B.2 C
最新回复
(
0
)