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-   -   Simple Arithmatic | 8 Dec, 2009 (http://www.go4expert.com/contests/simple-arithmatic-8-dec-2009-t20304/)

pankaj.sea 7Dec2009 19:50

Simple Arithmatic | 8 Dec, 2009
 
Two Numbers Are Such That Their Difference, The Sum And The Product Are In The Ratio 1:7:36. Find The Numbers And Explain! :cuss:

shabbir 8Dec2009 18:53

Re: Simple Arithmatic | 8 Dec, 2009
 
Approved.

venami 8Dec2009 19:48

Re: Simple Arithmatic | 8 Dec, 2009
 
x = 12
y = 9

x-y = 3
x+y = 21
xy = 108

so x-y:x+y:xy => 1:7:36

venami 8Dec2009 19:54

Re: Simple Arithmatic | 8 Dec, 2009
 
From the question we can say,

x-y x+y xy
--- = ---- = ---- = r
1 7 36

From this we get three equations,

x - y = r
x + y = 7r
xy = 36r

By solving these equations, we get the value of r=3, x=12, and y=9.

venami 8Dec2009 19:56

Re: Simple Arithmatic | 8 Dec, 2009
 
In the previous post, the first equation should be like this:

[(x-y)/1] = [(x+y)/7] = [(xy)/36] = r

It didn't display correctly, so I am reposting that equation here.

pankaj.sea 8Dec2009 21:33

Re: Simple Arithmatic | 8 Dec, 2009
 
Hi Venami...
You are absolutely correct!
Congrats...
;)

sameer_havakajoka 8Dec2009 22:12

Re: Simple Arithmatic | 8 Dec, 2009
 
hehehe..gud maths....congrs

venami 8Dec2009 22:16

Re: Simple Arithmatic | 8 Dec, 2009
 
Thanks ;)

pankaj.sea 8Dec2009 22:20

Re: Simple Arithmatic | 8 Dec, 2009
 
Quote:

Originally Posted by venami (Post 61395)
Thanks ;)

You Welcome Man... :D

nimesh 9Dec2009 21:46

Re: Simple Arithmatic | 8 Dec, 2009
 
Congrats Venami. Nice calculation :)


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