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## Main Question or Discussion Point

I am collecting bottle caps off 2 liter and 20 oz soda bottles because the folks at the nursing home uses them to cover bingo numbers instead of sliding the little window on the bingo card because that's difficult for them to manipulate.

Which got me to thinking. Considering the rules of bingo...

1. played on a grid of 5x5 numbers

2. must cover 5 in a row to win

3. the center position is a "FREE" number

what is the maximum number of bottle caps one would need to ensure there are enough bottle caps to play a single card game of bingo?

I say 15. In other words I could cover 15 numbers and still not have bingo. But as soon as I get the 16th (remembering the center position is free) number covered I must win.

Am I right?

tex

Which got me to thinking. Considering the rules of bingo...

1. played on a grid of 5x5 numbers

2. must cover 5 in a row to win

3. the center position is a "FREE" number

what is the maximum number of bottle caps one would need to ensure there are enough bottle caps to play a single card game of bingo?

I say 15. In other words I could cover 15 numbers and still not have bingo. But as soon as I get the 16th (remembering the center position is free) number covered I must win.

Am I right?

tex