Limits and bounds question?

[1234penguin]

I hope I've put this in the right forum section....
A chain is 30 meter long to the nearest meter. A chain is also needed to fasten a boat to a wall, a distance of also 30 meter to the nearest meter. Which statement is true?
A) Chain isn't long enough
B) Chain is long enough
C) Can't tell

And I need an explanation, thanks.

To me it would be cant tell because its the same measurements but not sure..

 

[stapel]

To me it would be cant tell because its the same measurements but not sure..

I'm sorry, but I don't understand what you are saying here...? Also, how does this relate at all to "Calculus"?

Kindly please reply with clarification. Thank you!

 

[DrPhil]

I hope I've put this in the right forum section....
A chain is 30 meter long to the nearest meter. A chain is also needed to fasten a boat to a wall, a distance of also 30 meter to the nearest meter. Which statement is true?
A) Chain isn't long enough
B) Chain is long enough
C) Can't tell

And I need an explanation, thanks.

To me it would be cant tell because its the same measurements but not sure..

The chain has length somewhere between (30.0-0.5)m and (30.0+0.5)m. Likewise the distance boat-to-wall is somewhere between (30.0-0.5)m and (30.0+0.5)m. Do you have a way of knowing which is longer than the other?