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# Is integer N is a multiple of 15 ? 1. N is a multiple of 20.

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Is integer N is a multiple of 15 ? 1. N is a multiple of 20. [#permalink]  04 Feb 2008, 14:29
Is integer N is a multiple of 15 ?

1. N is a multiple of 20.
2. N+6 is a multiple of 3.
Manager
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Re: integer N ? [#permalink]  04 Feb 2008, 14:58
blog wrote:
Is integer N is a multiple of 15 ?

1. N is a multiple of 20.
2. N+6 is a multiple of 3.

C
1. Only proves N is a multiple of 20 . So not sufficient
2. Only proves N is a multiple of 3 . So not sufficient

If you combine both , N is a multiple of 60 which is always a multiple of 15.
Re: integer N ?   [#permalink] 04 Feb 2008, 14:58
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