Braingle Lite



Firefighter

Category:Math
Submitted By:glennyboy02
Fun:*** (2.78)
Difficulty:** (1.18)



A firefighter stood on the middle rung of a ladder, spraying water on a burning house. He then climbed up 6 rungs before the heat of the flames caused him to come down 10 rungs. After some minutes he was able to climb 18 rungs to the very top of the ladder. How many rungs did the ladder have?

Show Answer



Comments on this teaser


Posted by eahtriscuit06/27/02
I don't get it. When you count up 18 rungs you get 18. Miscalculation!

Posted by glennyboy0206/28/02
No 29 is the correct answer! The firefighter is standing on the middle rung. He goes up 6 rungs so he is now at M+6, he now goes down 10 rungs so he is now at M-4 he goes up 18 rungs so he is now at M+14=T. 14 rungs from the top, 14 rungs from the bottom and the middle rung. 14+14+1=29!

Posted by peppermintwist07/01/02
I thought middle meant somewhere in the middle, not the exact middle, so I got 24

Posted by NuttyPrince07/03/02
i got 28 bcoz i forgot the last rung. Thats a well gud riddle!

Posted by carolyn07/09/02
i done it i one it 2 easy

Posted by steph07/28/02
I did it too! this is quite an achievement for me- i've never done a math teaser before!!!

Posted by dsquared08/14/02
Great teaser, simple concept with a twist... as mentioned in above comments - which I will not mention as I don't want to give the answer in my comment.

Posted by xiaobaby08/29/03
i got 28 too, forgot the middle one. all in all, this is not bad a teaser

Posted by yishan_n_fione12/17/04
well..i don't get...too hard but a good quest

Posted by MrIxolite12/17/04
I mis added and came up with M12=T so my anser was 25 :oops: I was even like oh that is sooooo easy :oops:

Posted by Chelsie12/17/04
I concur tedjohnson!! I mean what a BALANCING act... Surely inertia from the hose would have caused him to topple!!!!! :lol:

Posted by Jonesy12/17/04
Hey one extra rung isn't just a half a rung! Great job on the teaser, very clever! 8)

Posted by Punk_Rocker12/17/04
That was really good, but it was really easy...which is why i got it.... :-? but it was clever!!

Posted by Araldite12/17/04
A middle rung means there must be an odd number of rungs. I think it was a good teaser because that was the twist that makes it harder than it appears. :)

Posted by dhang12/17/04
i told you m not good in math but i enjoy it rerlly!!! keep up the good work :lol: :o

Posted by mr_brainiac01/03/06
interesting little no-brainer, easy-breezy - 29 it is.

Posted by mmmcla0106/25/06
I agree with strangeman.......jonhoe: it wouldn't be half a rung, it is the middle rung......glennyboy explained it just fine in the answer.......did you even read it? :roll: :roll:

Posted by teen_wiz07/02/07
Normally I don't like math teasers, but this one's an exception. Cute, fun, and made me think... great job! :D

Posted by oddrey08/21/07
I got twenty eight. I could have gotten it right if I had thought more. that was a really well written and fun teaser. nice job! :D

Posted by javaguru01/02/09
Wow, a lot of comments for such a simple teaser. I thought it was so simple that I didn't even understand why it was a teaser, but I guess the "middle rung" thing tripped some people up. Obviously, if you HAVE a middle rung there are an odd number of rungs... 8)

Posted by opqpop09/10/10
This is the like the exact same problem as http://www.braingle.com/brainteasers/ 17721/monk-steps.html and they are neither difficult nor interesting.




Search:
Browse:

Most Popular | Hardest | Easiest




Privacy | Terms
Copyright © 2003