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A,B and C are positive integers. Is the multiple of them is

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A,B and C are positive integers. Is the multiple of them is [#permalink] New post 23 Nov 2007, 06:36
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A,B and C are positive integers.

Is the multiple of them is dividable by 3 ?

A) A,B,C are consecutive.

B) A is dividable by 5, B is dividable by 13.

OA soon

:)
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 [#permalink] New post 23 Nov 2007, 06:55
A,B and C are positive integers.

Is the multiple of them is dividable by 3 ?

A) A,B,C are consecutive.

B) A is dividable by 5, B is dividable by 13.

a............suff

b.......insuff

A is my answer
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 [#permalink] New post 23 Nov 2007, 07:15
It looks like A

If the three positive integers are consecutive, they must include one that is divisible by 3. Therefore their product is also divisible by 3.

2 is insufficient.

If zero was defined as a positive integer, things might be different, but I think I recall reading that zero is defined as neither negative nor positive. Is this right?
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 [#permalink] New post 23 Nov 2007, 07:34
Raffie wrote:
It looks like A

If the three positive integers are consecutive, they must include one that is divisible by 3. Therefore their product is also divisible by 3.

2 is insufficient.

If zero was defined as a positive integer, things might be different, but I think I recall reading that zero is defined as neither negative nor positive. Is this right?


the OA is indeed A

As for your question - zero is neither negative nor positive and 0 is divisible by 3.

:)
  [#permalink] 23 Nov 2007, 07:34
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A,B and C are positive integers. Is the multiple of them is

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