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January 26, 2015

January 26, 2015

Posted by **Michelle** on Tuesday, July 5, 2011 at 6:10pm.

- Math -
**MathMate**, Tuesday, July 5, 2011 at 10:31pmIf there are four seats per row, one person sits at each end, and two spaces will be between them. The same goes for 7 seats, namely the first, fourth, and seventh will be occupied. Continuing this way, we know that seats will be occupied on the

1st, 7th, 10th, 13th, .... (3n+1)th.

So which is the occupied seat below or equal to the 100th seat?

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