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题库 / OG2018Q-DS-257
If ~$a$~ and ~$b$~ are positive integers, what is the value of the product ~$ab$~?
(1) The least common multiple of ~$a$~ and ~$b$~ is 48.
(2)The greatest common factor of ~$a$~ and ~$b$~ is 4.
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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不理解？！4和12最小公倍数不是24吗
12
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