又是一道机经题，我觉得答案有问题呀

fzygrrace · 发表于 2011-8-18 15:21:27

If x is a positive integer, what is the least common multiple of x, 6, and 9 ?

(1)The least common multiple of x and 6 is 30.

(2)The least common multiple of x and 9 is 45.

为啥是D
我杂觉得是E
1=》》X=5/15
2=>X=5/15 所以我觉得不应该是D

sdcar2010 · 发表于 2011-8-18 21:13:00

You are wrong.

5, 6, and 9, LCM is 90.
15, 6, and 9, LCM is still 90!

呼小桃 · 发表于 2011-11-23 16:49:04

楼上正解~~~

又是一道机经题，我觉得答案有问题呀

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