Posted by bob on Thursday, April 25, 2013 at 7:02am.
How many distinct integer values of N between 1 and 1000 are there, such that
N=4a+b+4c and 2N=7a+6b+7c for some positive integers a, b and c?

ALGEBRA!!!!  Anonymous, Friday, April 26, 2013 at 9:09am
21

ALGEBRA!!!!  Akhu, Saturday, April 27, 2013 at 8:56am
58

ALGEBRA!!!!  Anirudh Mahapatro, Sunday, April 28, 2013 at 2:33am
58
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