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题库 / GMATAdvanced-DS-72
If K is a positive integer less than 10 and N=4, 321+K, what is the value of K?
(1)N is divisible by 3.
(2)N is divisible by 7.
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
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一个整数的个位数字去掉，并用剩下的数减去这个个位数字的2倍得到的数如果是7的倍数那么这个数便可以被7整除
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