MBA考试

【单选题】When the integer k is divided by 12, the remainder is 3. Which of the following, when divided by 12, will have a remainder of 6
Ⅰ 2k
Ⅱ 6k
Ⅲ 4k+6
A．Ⅰonly
B．Ⅱonly
C．Ⅲonly
D．ⅠandⅡonly
E．Ⅰ, Ⅱ, andⅢ
网考网参考答案：E
网考网解析：
根据题意可设k=12m+3，其中m是整数，则： 2k=2(12m+3)=12×2m+6 6k=6(12m+3)=12×(6m+1)+6 4k+6=4(12m+3)+6=12×(4m+1)+6 所以2k，6k和4k+6被12除时，余数都是6。 查看试题解析出处>>