首页
登录
职称英语
If x and y are integers between 10 and 99, inclusive, is [img]2022m10x/ct_ve0120
If x and y are integers between 10 and 99, inclusive, is [img]2022m10x/ct_ve0120
游客
2024-01-13
59
管理
问题
If x and y are integers between 10 and 99, inclusive, is
an integer?
(1) x and y have the same two digits, but in reverse order.
(2) The tens’ digit of x is 2 more than the units’ di git, and the tens’ digit of y is 2 less than the units’ digit.
选项
A、Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B、Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C、BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D、EACH statement ALONE is sufficient.
E、Statements (1) and (2) TOGETHER are NOT sufficient.
答案
A
解析
Determine whether
is an integer, where x and y are 2-digit integers.
(1) From (1), if x = 10a + b, then y =10b + a. It follows that x-y= 9(a - b), so
is an integer; SUFFICIENT.
(2) From (2), if x = 10a + b, then a = b + 2. If y = 10r + d, then c = d- 2. It is possible that
is an integer (for example, if x = 75 and y = 57), and it is possible that
is not an integer (for example, if x = 75 and y = 46); NOT sufficient.
The correct answer is A;
statement 1 alone is sufficient.
转载请注明原文地址:https://tihaiku.com/zcyy/3360111.html
相关试题推荐
Concerningmoneyoranythingelse,conflictsbetweenhusbandandwifeusuall
Concerningmoneyoranythingelse,conflictsbetweenhusbandandwifeusuall
Concerningmoneyoranythingelse,conflictsbetweenhusbandandwifeusuall
Icanhardly______thedifferencebetweenthesetwowords.A、pointB、speakC、talk
Concerningmoneyoranythingelse,conflictsbetweenhusbandandwifeusuall
Concerningmoneyoranythingelse,conflictsbetweenhusbandandwifeusuall
Concerningmoneyoranythingelse,conflictsbetweenhusbandandwifeusuall
Concerningmoneyoranythingelse,conflictsbetweenhusbandandwifeusuall
______thecause,thehatebetweenthesemengrewdeeperanddeeper.A、WhatB、Wha
The____goalofthebookistohelpbridgethegapbetweenresearchandteachin
随机试题
Unlesshe(tell)______uswhoheis,wewon’tlethimin.tells根据句意,此处应该用一般现在时。
WhichofthefollowingitemsisNOTthesymbolofHalloween?[originaltext]H
Differentcountriesanddifferentraceshavedifferent(11).InChina,itisim
立面铺贴防水卷材时应采用()。A.空铺法 B.点粘法 C.条粘法 D.
根据《2012土建工程预算定额》,金属构件安装均按建筑物跨内吊装考虑,若需跨外吊
产褥感染体温过高的护理措施,错误的是A.嘱患者卧床休息 B.体温超过39℃不予
何某取得某地的采矿许可证,经营煤矿生意,一直以来都按规定生产作业,但是由于何某欠
案例十: 下面是某求助者的WAIS-RC的测验结果: 根据该求助
吗啡镇痛的作用机制是A.阻断中枢阿片受体 B.激动中枢阿片受体 C.抑制中枢
当封闭母线的直线段长度在()m左右及有可能发生不同沉陷的场所,导体和外壳宜设置(
最新回复
(
0
)