## Welcome to BrainDen.com - Brain Teasers Forum

Welcome to BrainDen.com - Brain Teasers Forum. Like most online communities you must register to post in our community, but don't worry this is a simple free process. To be a part of BrainDen Forums you may create a new account or sign in if you already have an account. As a member you could start new topics, reply to others, subscribe to topics/forums to get automatic updates, get your own profile and make new friends. Of course, you can also enjoy our collection of amazing optical illusions and cool math games. If you like our site, you may support us by simply clicking Google "+1" or Facebook "Like" buttons at the top. If you have a website, we would appreciate a little link to BrainDen. Thanks and enjoy the Den :-) |

# Ship Ladder

### #21

Posted 10 November 2007 - 02:32 AM

Peace

### #22

Posted 15 November 2007 - 12:59 AM

### #23

Posted 15 November 2007 - 02:32 AM

### #24

Posted 15 November 2007 - 03:24 PM

### #25

Posted 15 November 2007 - 06:59 PM

### #26

Posted 11 December 2007 - 10:06 PM

### #27

Posted 15 January 2008 - 06:18 PM

I think that saying #8 is third from the top is true. We're saying it's the 3rd rung from the

top, not the 3rd rung from thetop rung. Likewise, #3 would be the 3rd from the ground, but only the 2nd from the bottom rung, even though we agree it doesn't matter in this puzzle.

The Top is the Top Rung. So the third from the top is the 7th tave. The math is 8 hours. But that is not the correct solution as stated by many others.

### #28

Posted 06 February 2008 - 08:33 PM

Just my two cents Great riddle, by the way. Almost got me thinking back to freshman physics, before I remembered sophomore physics

**Edited by Freerefill, 06 February 2008 - 08:34 PM.**

### #29

Posted 26 February 2008 - 01:57 AM

### #30

Posted 10 March 2008 - 10:18 PM

it would still be the eight tave because it is 180/20 =9 but you forgot to add the extra tave at the water which would make it 10 taves total so the target tave would be the 8th tave, and thus, making the target height 140 cm which would then make the answer 9hours and 20 minutes: 140/15=9 1/3. but this is still wrong because the boat would rise with the water so the water would stay with the first taveOk first of all you got me. And so the math I did is irrelevant, but since others worked it out too, I am confused as to how you got to the answer of 10 hours 40 minutes to reach the 8th stave. As I did the math, the ladder is 180 cm long and the distance between staves is 20 cm. 180 / 20 = 9 staves. So if we are trying to get the the third from the top our target stave would be number seven not number eight.

If the above math is correct then the target height is 120 cm (remeber the number 1 stave is at 0 cm not at 20 cm)

If the target height is 120 cm and the tide rises at 15 cm per hour then it would take eight hours to reach the number seven stave (120/15).

Just assume the tide rises and the boat doesn't is my math faulty?

**Edited by minkus111, 10 March 2008 - 10:19 PM.**

#### 0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users