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
18
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
LaughterIstheKeytoHappinessIntroduction
ElizabethWillard,themotherofGeorgeWillard,wastallandgauntandher
Ifoursocietyeverneededareadingrenaissance(复兴),it’snow.TheNational
D由逻辑电路的基本关系变换可得结果,变换中用到了逻辑电路的摩根定理。
钢丝涂塑层厚度为0.25~0.38mm,钢丝直径越粗,其涂塑层越薄。()
关于痛风,下列说法中错误的是A.痛风关节炎的发作无自限性 B.确诊痛风的依据是
教师体罚学生,对学生身体造成严重伤害的,除要承担一定的行政责任外,还要承担()
2002-133.小儿夜啼,应考虑的原因是 A.惊恐为病B.心经有热C
假定某金融资产的名义收益率为5%,通货膨胀率为2%,则该金融资产的实际收益率为(
某工程施工承包单位将其承包工程中的劳务作业发包给某劳务分包单位,双方约定劳务报酬
最新回复
(
0
)