Todays Brain Teaser #32 (08JUL2013)

[vpnavy]

Today's Brain Teaser #32 (08JUL2013)

A boat is at anchor. Over the side hangs a rope ladder with rungs a foot apart. The tide rises at a rate of 10 inches per hour.

At the end of six hours, how much of the rope ladder will remain above water, assuming that 10 feet were above the water when the tide began to rise?

 

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[Red James Cash]

10 feet

 

[jman774]

5 ft

 

[Mackaydon]

I agree with RJC: ten feet; the boat floats (rises with the tide) so nothing has changed; still ten feet.
Don....

 

[Sheperdess]

Well, I don't have a clue.

 

[vpnavy]

A boat is at anchor. Over the side hangs a rope ladder with rungs a foot apart. The tide rises at a rate of 10 inches per hour.

At the end of six hours, how much of the rope ladder will remain above water, assuming that 10 feet were above the water when the tide began to rise?

10 feet

Correct!

Since the boat is afloat, the water level in relation to the ship stays the same. Therefore, 10 feet are above water - just as the beginning!

Stay tuned for tomorrow's!
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