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Length and Breath of Rectangle
The length and breath of of a rectangle is in the ratio 7:5.if the length decreases by 5 and the breath increases by 2,then the area of it was 65 sqkm.then find the actual length and breath of the rectangle.


  
Total Answers and Comments: 2 Last Update: July 27, 2009     Asked by: saisudha.m 
  
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 Best Rated Answer
Submitted by: sravsnv
 
l=11.4058
b=8.147

Above answer was rated as good by the following members:
anirudhvenkats, radha madhuri
August 12, 2008 13:36:37   #1  
sravsnv Member Since: August 2008   Contribution: 1    

RE: Length and Breath of Rectangle
l 11.4058
b 8.147

 
Is this answer useful? Yes | NoAnswer is useful 2   Answer is not useful 1Overall Rating: +1    
July 25, 2009 12:26:30   #2  
kirubakaran51967 Member Since: July 2009   Contribution: 1    

RE: Length and Breath of Rectangle
The formula for area of rectangle is breath*length. It is given that l/b 7/5

From that l 7/5*b
Length decreases by 5 and breath increases by 2.
so now the new area will be A (l-5)*(b+2)
sub the value of l above equation then A (7/5b-5)(b+2)

The given new area s 65sqkm.sub area n above eqn form the equation get the value of b and l.
b 8.147
l 11.4056

 
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