Friday, February 19, 2010

They got married ...

Three young ladies got married on the same day. Their combined weight was three hundred and ninety-six pounds. Nellie weighed 10lbs. more than Kitty, and Minne weighed 10lbs. more than Nellie. Bridegroom John Brown weighed exactly the weight of his bride. William Jones weighed half again as much as his bride. Charles Robinson weighed twice the weight of his bride. All together, the 6 people weighed half a ton.


What was the full name of the three brides after the wedding ceremony?

9 Comments:

Anonymous Anonymous said...

Mrs Brown
Mrs Jones
Mrs Robinson

regards, Curtis

February 19, 2010 4:33 PM  
Anonymous Anonymous said...

But seriously,

There is no solution for half a ton as I understand it....so I guess it means a "short" ton

k+10=n
n+10=m
thus 3k+30=396
so k=122, n=132, m=142

j+w+c=604

trial and error

kitty brown
nellie jones
minnie robinson

regards, Curtis

February 19, 2010 4:43 PM  
Blogger Zaux said...

hey Curtis ...
I like the first answer better, but both are correct.
:)

February 19, 2010 5:58 PM  
Blogger Zaux said...

Given:

1) n+k+m = 369
2) n = k+10
3) m = n+10

JB = bride's age
WJ = 3/2 * bride's age
CR = 2 * bride's age

2a) n=k+10 ⇒ k=n-10

Substituting 2a)and 3) into 1)
n+(n-10)+(n+10) = 369
3n = 369
n = 123 lbs.
m = 123 lbs.
k = 113 lbs.

All 6 weigh half ton = 1000 lbs.
3 men weigh 1000 - 369 = 631 lbs.

NOW, I'M STUCK ... (Curtis used brute force) ... can anyone see an algebraic solution!

February 19, 2010 6:52 PM  
Blogger Zaux said...

spotted an error above:

m = 133 lbs.

February 19, 2010 6:58 PM  
Blogger Ross said...

Zaux, your original problem statement was that the girls totalled "three hundred and ninety-six pounds" : 396, not 369.

k+m+n = 396
n = k+10
m = n+10

k+(k+10)+(k+20) = 306
3k = 366
k = 122
n = 132
m = 142

k+n+m+j+w+c = 1000
j+w+c = 1000-396 = 604

j = his bride
w = his bride * 1.5
c = his bride * 2

at this point I just tried combinations, and the first combination worked:

j&k : j = k = 122
w&n: w = n*1.5 = 198
c&m: c = m*2 = 284
j+w+c = 122+198+284 = 604

February 19, 2010 7:05 PM  
Blogger Zaux said...

you're right Ross ... guess I'm tired ... thanks man

February 19, 2010 7:10 PM  
Blogger Chris said...

Hi Zaux. No algebraic solution that I can think of, but, by noting that the sum of the men's weigh ends with 4, and looking at a table with all the combinations, you quickly realise that there are only two possible full trial and error additions needed.

February 19, 2010 7:33 PM  
Blogger Zaux said...

Thanks Chris ... I looked at it 30 minutes and could see no math solution.

February 19, 2010 7:52 PM  

Post a Comment

Links to this post:

Create a Link

<< Home