Lenny Conundrum #160

sillygurl · **Posts:** 259 **Joined:** Sat Sep 10, 2005 10:46 pm

Five Grundos took turns weighing themselves on a scale. However, they weighed each other two at a time, ten times total , so that every possible combination of two grundos was weighed. The scale had the following readouts for the pairs: 236 pounds, 244 pounds, 228 pounds, 250 pounds, 258 pounds, 230 pounds, 246 pounds, 238 pounds, 242 pounds, and 252 pounds.

How heavy was the heaviest Grundo?

Forgot to post that its been solved, not one of the tops but at least some spending cash. Still trying to find my Dreamer constellation.

endeavourl · **Posts:** 1247 **Joined:** Thu Sep 29, 2005 10:34 pm

I love math problems

The heaviest grundo is

im guessing, because he has to wear a mask.

Hint: I think one hint is enough (see post below)

843 · **Posted:** Thu Mar 30, 2006 5:34 am

This is one of the conondrums which I can solve by myself

I found the answer through pure trial and error 0:)

Hint: The total weight of all 5 Grundos is 606 pounds.

hakuryu_86 · **Posted:** Thu Mar 30, 2006 6:08 am

pretty simple... I think were' all going to get less than 100nps for this one

they probably wanted to play a word trick on us, so my best advice is to think it mathematically

mashette · **Posted:** Thu Mar 30, 2006 9:32 am

anybody get decimals??

843 · **Posted:** Thu Mar 30, 2006 12:06 pm

Nope, not that complicated. Another hint: Each of their weight is an even number.

Miss_Raven · **Posted:** Thu Mar 30, 2006 3:24 pm

Gah, that is too simple. I solved it in 5 minutes and I failed Maths while in High School :roflol:

843: thanks for the hint

At least I know I got all the weights right :hug:

bumpty85 · **Posts:** 159 **Joined:** Sat Oct 08, 2005 8:51 am

i actually got top 250 for last weeks! i think i got the answer when the neoboards were on page 13 or 14, so i bet a lot of them got it wrong =p

anyway, i hope i got top 250 again this week =) i think i got it around the 4th or 5th neoboard page =p

843 · **Posted:** Thu Mar 30, 2006 4:53 pm

Miss_Raven wrote:

Gah, that is too simple. I solved it in 5 minutes and I failed Maths while in High School :roflol:

843: thanks for the hint

At least I know I got all the weights right :hug:

You're welcome, though it involves logic more :lol:

I think the many hours I spent on Sudoku finally pay off :roll:

Miss_Raven · **Posted:** Thu Mar 30, 2006 5:00 pm

843 wrote:

Miss_Raven wrote:

Gah, that is too simple. I solved it in 5 minutes and I failed Maths while in High School :roflol:

843: thanks for the hint

At least I know I got all the weights right :hug:

You're welcome, though it involves logic more :lol:

I think the many hours I spent on Sudoku finally pay off :roll:

Yeah, it does. At least I had a nice training in logic at my Calculus lessons on College :roflol:

Your hint just helped me to see that I didn't need to double-check my calculation before submitting the answer, I got 606 as the total weight too

littleboy6326 · **Posted:** Thu Mar 30, 2006 6:07 pm

How can all of you solve it so easily? I'm having a lot of trouble on it.

Each Grundo's weight is an even number.
The total weight is 606.

I have absolutely no idea how to find out which is the heaviest. So I suppose I shall just guess.

Mimi · **Posted:** Thu Mar 30, 2006 8:26 pm

I want them to do something a bit more math related, like using implicit derivatives in finding the velocity or height of something at a certain moment.

*Nerd.*

endeavourl · **Posts:** 1247 **Joined:** Thu Sep 29, 2005 10:34 pm

soymimi wrote:

I want them to do something a bit more math related, like using implicit derivatives in finding the velocity or height of something at a certain moment.

*Nerd.*

yea, I agree. Maybe taking a surface integral or something

They did have a cool physics problem during the lost desert plot, but not nearly as hard as it could have been.

sid_basu4243 · **Posted:** Fri Mar 31, 2006 12:06 am

endeavourl wrote:

soymimi wrote:

I want them to do something a bit more math related, like using implicit derivatives in finding the velocity or height of something at a certain moment.

*Nerd.*

yea, I agree. Maybe taking a surface integral or something

They did have a cool physics problem during the lost desert plot, but not nearly as hard as it could have been.

Nah - too difficult - assuming it is actually a kids site. True that we adults are also hooked up, but I think thats not fair to them. Once in a while is Ok like the dubloon one 2 weeks back. Overall I do not mind getting low payouts, as an adult most of us should have other means to support myself, which most of us do.
I am happy when they give an easier problem, maybe this will get more kids hooked to maths and this is a relatively fun way to do it. I only started liking maths at high school anyway, when I realized I cannot look smart based on the genes I have

poohroony · **Posted:** Fri Mar 31, 2006 2:10 am

i'm not sure if what i did was wrong but i added 2 of the given weights and then subtracted it to 606 and did this to all the weights until I got the highest, all the answers i got were even numbers, i just hope I got the right one

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Lenny Conundrum #160

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