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If # , $ represent digits , is 7#$ divisible by 15? 1. Sum

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If # , $ represent digits , is 7#$ divisible by 15? 1. Sum [#permalink] New post 08 Oct 2003, 01:48
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If # , $ represent digits , is 7#$ divisible by 15?

1. Sum of # and $ is 11

2. 34,2#$ / 5 is an integer

Please Explain

Thanks
Praetorian
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 [#permalink] New post 08 Oct 2003, 02:48
(1) #+$=11

9+2
8+3
7+4
6+5
5+6
4+7
3+8
2+9 NOT SUFF 792 is not div by 15, but 765 is

(2) # is any digit, $=0 or 5
NOT SUFF, 765 is div by 15, but 760 is not.

Combine: only 765 is possible, which is divisible by 15. Therefore, it is C.
  [#permalink] 08 Oct 2003, 02:48
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If # , $ represent digits , is 7#$ divisible by 15? 1. Sum

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