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题库 / Prep2007E2-DS-87
Is the integer n a multiple of 15 ?
(1) n is a multiple of 20.
(2) n + 6 is a multiple of 3.
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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误解题意
a multiple of ……的倍数； a factor of ……的因数
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